During three stages, the impact-cycles of specimen experience in absence of wear stage are relatively decreasing, and remain relatively long impact-cycles in slightly wear stage, which closely related to the micro-changes of specimen surface.

A single equilibrium model of spot market in absence of future market and general equilibrium model between spot and future markets in presence of future market are derived.

本研究构建了不存在期货交易的现货市场单均衡模型和存在期货交易的期货市场、现货市场一般均衡模型。

He acted as chairman in my absence.

在我离开期间，他代行主席职务。

Speak no ill of him in his absence.

不要背地里讲他的坏话。

The decision was made in my absence.

这个决定是我不在的时候作出的。

A military court sentenced him to death in his absence

一所军事法庭在他缺席的情况下判处他死刑。

I'll take your place in your absence.

你不在时我将代替你。

Graft copolymerization of silk fibers(ⅱ)── Grafting vinyl monomers onto silk fibers in absence of initiator

丝素蛋白纤维的接枝聚合（Ⅱ）&无引发剂存在时丝素蛋白纤维接枝烯类单体

Orthodontic treatment of mesially impacted lower third molar in absence of the lower first molar

前倾阻生的下颌第三磨牙在下颌第一恒磨牙缺失时的矫正

In the absence of any further evidence the police were unable to solve the murder.

由于缺乏进一步的证据，警方无法侦破那起谋杀案。

Thus, chaotic searching algorithm is generalized to solving a kind of 0-1 integer programming problem. Chaotic searching algorithm is applied to optimize effectiveness in absence of air defenses.

然后利用M个独立的混沌变量在这NM个等分区域中搜索最优解，从而将混沌搜索算法推广应用于解决一类0-1整数规划问题。

It seems fairly unrealistic that, in absence of already-rising foreign markets, such a strong desire for investment in a foreign country would exist on the part of these overseas investors.

在外国市场没有上涨时，指望海外投资者在外国投资的欲望会如此强烈是很不现实的。

In the absence of definite evidence the prisoner was set free.

因缺乏确凿证据，囚犯被释放了。

In the absence of a will the courts decide who the guardian is.

在没有遗嘱的情况下，由法庭指定监护人。

Only nucleophilic substituted product cyclopropane ( 3) was formed in absence of iron catalyst.

不加催化剂，加热回流反应得到分子内亲核取代反应产物环丙烷化合物（3）

Perhaps , our hours in love have wings; in absence crutches.

爱情的时光长出了翅膀; 离别时, 它们是我们的精神支柱.

What happens in absence of a good , complete final report?

欠缺一份充份完整的结案报告会 如何 ?

He could not account for the absence from school that day.

他无法说明那天缺课的原因.

He could not account for his absence from school.

他无法说清楚为什么旷课.

This clause provides against any unauthorized absence from duty.

这一条条文禁止任何未经批准的缺勤.

Have you any excuse to offer for frequent absence from collective practice?

你经常不参加集体训练有什么理由解释 吗 ?