周期

The business cycle is a series of peaks and troughs.

商业周期是一系列的高峰期和低谷期。

Long long ago, we knew the periodic motion of a planet.

很久以前, 我们就知道行星的周期运动。

Finally, variance analysis is used to verify the validity of the crytic model.

最后，利用方差分析周期检验方法作了印证性。

The first application is the analysis of aircraft longitudinal long-period oscillation named phugoid phenomenon.

一个应用是分析名为复古现象的飞行载具纵向长周期振动。

Periodic only 7 - 10 days, shorten than traditional method a day above, raciness.

周期仅7-10天，比传统方法缩短则天以上，风味好。

Microgram for microgram, beryllium is one of the most toxic elements on the periodic table.

一微克，又是一微克，铍是周期表上最有毒的元素之一。

The yield of the pseudoionone and ionone was 96. 2% and 97. 6% respectively.

反应条件温和,周期短,缩合反应的产率达96.2％,环化反应的产率达97.6％.

The geyser erupts periodically.

间歇泉周期性地喷。

Two pulse generators, the Gaussian pulse generator and the monocycle generator, are designed, fabricated, and experimentally demonstrated.

接著设计可产生高斯脉冲及单周期脉冲的脉冲产生器。

Base on this structure, the photoresponse of each spectral shape is tunable by the period of gratings.

我们可以利用各种不同周期的光栅结构来调变响应的波形。

Economic crises recur periodically.

经济危机周期性地生。

The present paper using upper and lower solutions,proves an existence theorem of almostperiodic solutions for integrodifferential systems.

采用上下解方法，给出了一个积分微分系统概周期解存在的一般性定理。

Pressure energized lip-style piston and rod seals are wear compensating and prelubricated for millions of trouble free cycles.

高压带电唇式活和活封的磨损补偿和麻烦百万边界润滑自由周期。

Methods The level of somatostatin was measured in uterus and blood of mouse during genesial cycle by radioimmunoassay.

方法应用放射免疫方法检测小鼠生殖周期不同阶段子宫和血生长抑素的水平。

In eastern China, transgression occured periodically during Eogene, and formed specially paleobio-cenosis,mineral association and rock type.

在中国东部早三纪沉积演化过程中曾周期性地生过海侵,从而形成了具有海相特征的岩石类型、古生物组合。

All of the genes necessary for the lytic cycle are expressed in polycistronic transcripts from three promoters.

编码噬菌体结构成分的基因则排列为簇。裂解周期所需要的基因则以三个启动子起以多顺反子转录的形式表达。

Artificial credit expansion — credit not funded by savings — creates the business cycle by spawning capital malinvestment.

虚假的信贷膨胀——不是通过储蓄创造出来的信贷——通过制造了大量资本的错误投资而导致了商业周期。

It is 9 major planet run the great synodic period in the youngest covering of the fan 180 years.

一百八十年是九大行星运行到最小扇面之内的大会合周期。

Using surface fermentation method to produce apple vinegar,its acidation and alcoholization is the same as liquid deep fermentation method.

表面酵法生产苹果醋,其酒化和醋化过程与液态深层酵法相同,但酵周期较长。

Wernerians thought strata were deposits from shrinking seas, but James Hutton proposed a self-maintaining infinite cycle, anticipating uniformitarianism.

沃纳里恩斯认为地层是收缩的海洋的沉积物，但詹姆斯•赫顿提出了一个自我维持的无限周期，促进了地质均变的展。