I have a prior engagement and so can't go with you.

预先有约会，所以不能跟你去。

A prior engagement will preclude me from coming.

"因有约在先,不能来了。"

I have a prior engagement at five.

已经先有一个在五点钟的约会。

The fuel tank is pressure-tested prior to installation into your SUNSEEKER .

汽油箱在设施之前压力被测试入您的SUNSEEKER。

The Scholarship Awarder reserves the right to withdraw or amend the scholarship without prior notification.

本公有权在未经告知下暂停、取消或延期此活动。

His answer was tinted by his prior knowledge.

他的回答说明他先前就有所了解。

The duty to protect my sister is prior to all others.

保护的妹妹是最重要的责任。

The will was made two days prior to his death.

遗嘱是在他死亡前两天立的。

What did you do prior to coming here?

你来这里之前做什么事?

The contract will be signed prior to the ceremony.

合同将在仪式举行之前签字。

Adopting prior and posterior deposal system met the demands of filtrating,removing ammonia,rising oxygen,sterilizing and antisepsis.

采用前、后处理系统来满足过滤、除氨氮、杀菌消毒、增氧等需要。

Anglers are required to obtain prior authorization from the park keeper.

钓者必须事先得到公园管理者的许可。

Because nobody knows what is the most valuable, it is logical that the right of choice is prior to the content of choice.This situation infers the liberalistic value-free principle.

并且，由于客观的价值秩序消亡了，的时代目睹了价值多元论的趋势，而这与自由主义的价值中立的原则紧密相关。

Prior to the merger of the Stock Exchange of Singapore(SES) and Singapore International Monetary Exchange(SIMEX) on 1 Dec 1999, Mark worked with SIMEX (equity andinterest rate derivatives marketing).

在新加坡交易所与新加坡金融期货交易所合并前，任职新加坡金融期货交易所。

To the question why we do not find rich fossiliferous deposits belonging to these assumed earliest periods prior to the Cambrian system, I can give no satisfactory answer.

对于为什么有发现大量的属于这个比寒武纪还要早的时期的化石，无法给出满意的答案。

Recently, it has been shown that the Mitochondrial aldehyde dehydrogenase is responsible for the bioactivation of nitroglycerin prior to the release of NO, which is a strong vasodilator.

近来，有研究表明线粒体乙醛脱氢酶是体内催化硝酸甘油生物转化的主要途径，线粒体乙醛脱氢酶同时具有脱氢酶和酯酶的催化活性，其酯酶活性可以通过将硝酸甘油脱硝形成一氧化氮，进而血管扩张。

Corrections for chemiluminescence were also applied as needed but were minimized by the use of the luminescence suppressing cocktail Aquagel and dark equilibration of samples prior to counting.

“对于化学荧光的校正不仅有应用性的需要而且能够利用荧光将鸡尾酒的水凝胶点以及计数前样品的暗平衡点降至最小”。

A control program might involve early preplant tillage to encourage germination of the weed seeds, followed by shallow tillage prior to planting to kill the emerged weeds.

这样，在耕地前想办法促使杂草萌发，随后在播种前浅耕将其杀灭。

Examinations should include monitoring of the IOP and gonioscopy for pseudophakes and patients with prior vitrectomies to detect mechanical obstruction of the trabecular meshwork by the medication.

眼科检查应该包括眼压监测以及对无晶体眼和玻璃体切割术受的患者行房角镜检查以发现小梁网被药物颗粒机械性阻塞的情况。

Adsorbable gases can be separated by porous ceramic membranes under the capillary condensation mechanism of membrane separation, on which prior study was only limited to pure components.

多孔陶瓷膜在毛细管冷凝传质机理的作用下能够有效地分离吸附性气体。而毛细管冷凝膜分离传质机理的研究还很不充分,目前,文献报道仅局限于纯组分气体的传质模型研究。