This paper analysed the forces that act on the shot in t last period before it is released, pointed out the significance of op mum acting time, and concluded that it is the crux to improve ballis strength to improve shot put performance.

The method is suitable to all models of interior ballis-tics of guns.

这种方法可适用于任何火炮内弹道模型。

Officials in the coastal Peruvian province of Callao on Monday hailed the Guinea pig as a low cost, low fat alternative to a traditional turkey or roast pork Christmas dinner.

秘鲁的沿海省份卡里奥的官员在周一宣布天竺鼠可以摆上圣诞餐桌来代替传统的火鸡或是烤猪。天竺鼠更加的便宜，而且脂肪含量较低。

IF ALL goes to plan, by2012 the first shipments of copper from Toromocho, a mine in the Peruvian Andes, will be sent by train and truck to a new$ 70m wharf in the port of Callao.

如果一切如计划所愿，那么到2012年，来自位于秘鲁安第斯山脉托罗莫乔铜矿（Toromocho）的第一批铜就将被火车和卡车运往卡亚俄一座造价七千万美元的崭新码头之中；

Mr Garc í a Belaunde hopes this will encourage further Chinese investment, especially in sorely needed transport infrastructure, such as at Callao and other ports.

加西亚？贝朗德希望此举能激励更多的中国投资，尤其是在需求迫切的运输基础设施领域的投资，比如在卡亚俄和其他港口的项目。

A small, edible, freshwater fish ( Dallia pectoralis) that inhabits streams and ponds of Alaska and Siberia and is noted for its ability to withstand freezing.

一种体型小，可食的淡水鱼（黑鱼），生活在阿拉斯加和西伯利亚的河流和池塘中，以其耐寒能力而著名。

Currently the AE monitoring systems which most enterprise and research institutes used are provided by US PAC company and Germany Vallen company. However, these systems have many limitations in function, and are not suitable to monitor offshore platform structure.

目前我国多数企业和研究机构主要采用美国PAC公司和德国Vallen公司的声发射监测系统，这些系统由于功能上的局限，在海洋平台结构监测的应用方面缺乏针对性。

The characteristics of physicochemical environment and their relationships to the distribution and migration of Walley Pollock Theragra chalcogramma in the Aleutian basin of Bering Sea in the summer

白令海阿留申海盆区狭鳕当年生幼鱼数量分布的调查研究白令海阿留申海盆区夏季理化环境特征及其与狭鳕分布和移动的关系

John Walley and colleagues call for a new perspective on healthcare research in this Bulletin of the World Health Organization editorial.

John Walley和他的同事在《世界卫生组织通报》中号召对卫生保健研究采取一种新的观点。

Study the Model for Evaluating Social Benefit of Walley Debris Flow Control

流域泥石流防治的社会效益评估模型研究

By the complete allel cross wit ten self ─ bred lines of maize that have the stable resistances and susceptibilities, the inheritance of the resistance of maize to stalk rot caused by Pythium sp. were studied.

通过抗性及感性稳定的10个自交系完全双列杂交对腐霉菌（Pythium sp）引起的茎腐病的抗性遗传进行研究。

The frequency of increasing and decreasing effect allel of the two traits was unequal, both in female and male parents.

二性状增、减效等位基因频率在雌亲组中和雄亲组中，平均来说都不相等；

Prevention against allel lack in genetic algorithms

遗传算法中基因缺失的预防

Computer imitation Test of allel segregation law

等位基因分离定律的计算机模拟

Allene oxide synthase ( AOS) is the first enzyme in the lipoxygenase pathway which leads to the formation of JA.

AOS（allene oxide synthase）是茉莉酸合成的脂氧合酶途径中的第一个关键酶。

The allene as a special kind of olefins has many novel reaction performance and so much attention has been paid to allene chemistry.

联烯结构作为一类特殊的烯烃有着许多新奇的反应性能，所以联烯化学已经得到了人们的广泛研究。

Research Progress in the Synthesis of Allene from Alkyne Derivatives

以炔烃衍生物为底物的联烯合成研究进展

The residual quantity of alliin one day later is 23.0%.

同时对大蒜破碎放置1d后体系中剩余蒜氨酸的含量进行了分析，测得剩余蒜氨酸含量占蒜氨酸总量的23.0%。

Objective: To obtain highly purified alliin and study part of its function.

目的：获取高纯度蒜氨酸并研究其部分功能。

Study of Extraction and Physiological Activity of Efficiency Composition Alliin in Garlic

大蒜功效成分蒜氨酸的提取与生理活性研究

OBJECTIVE To establish a preparation method for working reference substance of alliin.

目的建立蒜氨酸工作对照品。