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Methods To collect data by cluster sampling and analyze data by polychotomous Logistic regression.

方法采用整群抽样调查搜集资料,采用多分类回归分析筛选影响因素。

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Nasal cannulae are now aailable with a separate tube that can be attached to the sampling probe from a capnograph, thereby allowing for end-tidal CO2 monitoring.

鼻导管可单独连接到二氧化碳分析仪上采样,行呼气末二氧化碳监测。

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Indicate epidemiology investigation , confirm on the grounds of international sampling investigation, major part in the cancerogenic patient who has a smoke is a passive smoker.

流行病学调查表明,据国际性抽样调查证实,吸烟致癌患者中大部分是被动吸烟者。

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Via examining, have 40 kinds eligibly, sampling percent of pass is 58.8% , among them 10 kinds belong to the product with quality serious problem.

经检验,有40种,抽样率为58.8%,其中有10种属于质量问题严重产品。

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Superpopulation model is a bridge between survey sampling and other branches of statistics.It is helpful to study sampling theory with the tool of superpopulation models.

摘要超总体模型是抽样理论与统计学其它分支联系桥梁,借助于超总体模型研抽样理论是有前途方法。

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The flow model of single phase flow in the elbow of the vertical tubular leacher was studied by using NaCl solution tracing and microcomputer sampling.

用盐水示踪、微机采样来研垂直管道浸取器回弯头内单相流流动模型。

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In this survey, we take cosmetician as our sampling group and design a series of the questionnaires to know their acceptance of the information technology.

中文摘要美容医学诊疗产业是带动人类健康为目之产业。

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A combustion-driven entrained flow reactor equipped with an optical particle-sizing pyrometry diagnostic and a rapid-quench sampling probe has been used for this investigation.

这里使用试带有光学测温元件和快速淬火取样探针气流床反应器。

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Program goals include teaching the sharks to swim into a shallow stretcher and remain calm for medical exams, morphometrics, and eventually diagnostic sampling.

计划包括训练鲸鲨游入近水面运送架,并在医护检查、体形测量和抽取化验样本期间保持安静。

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This bead fusion method is a perfect sampling method for ICP, AA, as well as for indissolvable samples in wet chemical analysis.

对于ICP、AA和湿法化学分析手段,对于难溶样品,熔融方法同样是种非常完美制样手段。

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The malignant mesenchymoma is not rare actully,but owing to the one sidedness of sampling,it is always diagnosed pathomorphogically as one singletissue sarcoma.

恶性间叶瘤并不少见,但由于病例取材局限,每把此肿瘤诊断成种组织肉瘤。

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The error estimation of the quasi-synchronous sampling harmonics anal-ysis and the method used for measuring the subharmonics of periodic signalsare also discussed.

文中还对测量误差作了分析和估计,并介绍了测量分数次谐波种方法。

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In sampling, we choose a small number of items which we think are typical of the whole and examine the sample.

采样时, 我们选择少量我们认为是代表整体东西, 并对这样本进行研

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This paper presents a sampling and collecting high speed cloud echo data method using a monolithic processor for laser ceilometer.

本文介绍了激光测云仪中用单片机实现云体回波信号高速数据采集方法。

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It is calculated as half of the value of the sampling rate.Passing this level causes aliasing distortion, or foldover.

计算方法是将采样率除二,超过这数值将会导致折叠失真,或称折叠。

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Active carbon tube adsorption were used for sampling of methacrylonitrile, then thermal desorption analysis was performed by GC(FID).

活性碳管吸附空气中甲基丙烯腈,热解吸后气相色谱(FID)测定。

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Based on screening and sampling,properties of trass and trass concrete in Ximeng area of Inner Mongolia was studied.

通过筛分选样,对内蒙古锡盟地区大量蕴藏火山渣及火山渣混凝土进行了材料性能实验研

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Conduct operation including sampling, mounting, polishing, etching, microscope inspection, hardness testing, NDT testing (magnaflux particles, ultrasonic etc).

协助工程师进行材料测试,报告及分析.

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To avoid sampling bias, they restricted their analysis to one group of animals—the bivalve molluscs—that fossilise well.

为了防止取样偏颇,他们将分析对象限制在类化石记录保存完备动物——双壳类软体动物。

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A blood or urine test gives us information about the few hours before the sampling.

血检或尿检可以给我们提供取样前几个小时信息。

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学60秒 2018年4月合集

They are just sampling each cryptocurrency proportional to its market share.

他们只是对每种加密货币市场占有率进行抽样。”

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VOA Daily Standard 2023年1月合集

We pay the grower a fee to get the data that we also do the soil sampling for that grower, so in that process, we are actually measuring the carbon for the grower through soil sampling.

我们向种植者支付费用,以获得我们也为种植者进行土壤采样数据,因此,在这个过程中,我们实际上是通过土壤采样来测量种植者碳含量。

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CRI在线 2021年10月合集

Their study used a classical simulation algorithm called Gaussian boson sampling to provide a highly efficient way of demonstrating such speedup in solving some well-defined tasks.

他们研究使用了一种名为高斯玻色子采样经典模拟算法,在解决一些特定任务时提供了一种高效方式来证明这种加速。

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CRI在线 2022年6月合集

The discovery provides crucial evidence of the existence of impact ejecta from nearby craters in the sampling areas of the lunar probe.

这一现为月球探测器取样区域附近陨石坑中存在撞击喷出物提供了关键证据。

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学60秒-学美国人 2022年2月合集

What's new is that the CDC has started adding data from wastewater sampling sites to its dashboard, the COVID Data Tracker.

新消息是 CDC 开始将废水取样数据加入其仪表盘即新冠数据追踪机构。

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环游世界

You should reward yourself for packing so well by sampling Iceland's delicious cuisine.

行李准备得如此完备,不如品尝冰岛美味佳肴来犒赏自己。

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透视百综合类

Sampling devices, positioned throughout the test area, yield valuable information to chemical core researchers.

取样装置遍布整个测试区,为核心化学研究员提供有价值信息。

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节日综合录

Blessing of decorative baskets with a sampling of Easter eggs and other symbolic foods, is one of the most enduring and beloved Polish traditions on Holy Saturday.

用复活节彩蛋和其他有象征意义食物装饰篮子来表示祝福,是波兰在圣周六最持久和最受欢统之一。

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6 Minute English 六分钟英语

In this programme, we'll be sampling a dumpling from the West African country of Ghana. And, as usual, we'll be learning some useful new vocabulary as well.

在本期节目中,我们将品尝来自西非国家加纳饺子。和往常一样,我们也会学习一些有用新词汇。

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经济学人-

But maximising diversity is unlikely to mean sampling every part of the world equally.

但最大限度地提高多样性不太可能意味着对世界各地一视同仁。

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简单心理学

Only three percent of those customers actually bought jam after sampling it.

只有 3% 顾客,品尝后购买了果酱。

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Crash Course 天文篇

Chemical sampling could then look for signs of biological activity.

通过化学取样寻找生物活动迹象。

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剑桥学霸读书分享

And so if I had my time again, I'd be sampling more of those experiences.

所以如果我还有时间,我会尝试更多这样体验。

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生物学基础入门

Here are some more examples of sampling techniques.

这里还有一些采样技术例子。

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昆虫王国第二季 (原声版)

I'm here sampling this bromeliad. I have to find out what lives in it.

我在给这棵凤梨取样看看都有什么在里面安家。

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Osmosis-遗

It can be done before birth via chorionic-villus sampling or amniocentesis.

它可以在出生前通过绒毛膜-绒毛取样或羊膜穿刺术完成。

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TED演讲(音频版) 2015年3月合集

Instead, our brains are sampling just a little bit of the world.

相反,我们大脑只对 现实世界一小部分“浅尝辄止”。

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随身英语双语版

There are often deals on food and drink too, with some companies offering all-inclusive packages — although, this can discourage someone from eating outside the hotel and sampling local cuisine and helping the local economy.

在餐饮方面也会有优惠,有些公司会提供各种各样套餐——尽管这可能会阻止人们在酒店外吃饭,品尝当地美食,帮助当地经济。

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历年英语专八听力真题(专项)

By sampling as many different situations as possible researchers can reduce the chance that their observation results will be peculiar to a certain set of circumstances and conditions.

通过对尽可能多不同情况进行采样,研究人员可以减少他们观察结果受特定环和条件影响可能。

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