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Then the muzzle flowfield with muzzle brake was simulated with the aforementioned experience. Those complex phenomena including precursor shock caused by quickly moving of projectile, muzzle flow structure produced by propellant gases, affection of blast wave behind muzzle area which formed by leading angle of muzzle brake, etc, can be observed clearly by these simulations.

同时藉由此经验，模拟含炮口制退器之炮口流场，获得炮管内因弹体高速移动产生之先导震波现象、高温高压之发射药气体於炮口形成之喷流结构及制退器排气导孔对后方震波压力传导之效应等良好结果。

They divided it into cakes by methods too well known to require description, and these, being sledded to the shore, were rapidly hauled off on to an ice platform, and raised by grappling irons and block and tackle,worked by horses, on to a stack, as surely as so many barrels of flour, and there placed evenly side by side, and row upon row, as if they formed the solid base of an obelisk designed to pierce the clouds.

他们把冰切成一方块一方块，那方法是大家都知道的，无须描写的了，这些冰块放在雪车上，车到了岸边，迅疾地拖到一个冰站上，那里再用马匹拖的铁手、滑车、索具搬到一个台上，就像一桶一桶面粉一样，一块一块排列着，又一排一排地叠起来，好像他们要叠一个耸入云霄的方塔的基础一样。

How would you like to go to places , by boat, by train, by air or by bus?

你会怎么去那些地方呢？是乘船、火车、飞机还是汽车？

How would you like to go to places, by boat, by train, by air or by bus?

你会怎么去那些地方呢是乘船火车、飞机、还是公车？

How would you like to go to the following places,by boat,by train,by air Or by bus.

你愿意如何去下面这些地方呢乘船，乘火车，乘飞机还是乘汽车。

In this article made the cluster of phonological type by 4 of main phenophase with bourgeon period, leaf expansion period, flowering period and fruit ripenes period of observed data on phonology of 42 kind of plant 34 year in Minqin desert area, further the 23 of phenology classification merged by phonological type. The 23 of phenology classification basically obeys the ecotype characteristic of the plants, and the more scientific than the type of system cluster by plants sample. Moreover, the form of phonological type record by "ten day period + phonology" in the article.

以民勤荒漠区42种植物34年的物候观测资料，以萌动期、展叶期、开花期和果熟期4个主要物候期进行物候型聚类，进而将物候型归并为23个物候类型，聚合的物候类型基本上遵从植物的生态型特征，较系统聚类法直接用样本聚合的类型更加科学合理。

It has been occupied twice by invaders; by the Earl of Cumberland in 1598 and by the Dutch General Bowdoin Hendrick in 1625 when the building was damaged by fire.

已两度被侵略者占领；1598年，由厄尔的巴伦和荷兰人一般在1625bowdoin时亨大厦焚毁。

Objective By using Alzheimer's model rats induced by AlCl3,the effects and mechanism of Ginkgo flavone were investigated.Methods Ginkgo flavone were given to rats by oral for seven weeks.Then,the ability of study of mice were determined by step-down test and the number of neurons in the Bregma hippocampus containing β-APP proteins were counted.

目的 研究银杏黄酮对三氯化铝所致痴呆模型鼠学习记忆能力和海马内β-APP阳性神经元的影响，以期探讨银杏黄酮抗老年性痴呆的作用机制方法用三氯化铝致老年性痴呆模型大鼠实验对象，以其学习记忆能力、背海马和齿状回内β-APP阳性神经元的量为指标，全面考察银杏黄酮抗老年性痴呆的作用。

objective by using alzheimer's model rats induced by alcl3,the effects and mechanism of ginkgo flavone were investigated.methods ginkgo flavone were given to rats by oral for seven weeks.then,the ability of study of mice were determined by step-down test and the number of neurons in the bregma hippocampus containing β-app proteins were counted.results to the model rats,ginkgo flavone 100,200,400mg?

目的 研究银杏黄酮对三氯化铝所致痴呆模型大鼠学习记忆能力和海马内β-app阳性神经元的影响，以期探讨银杏黄酮抗老年性痴呆的作用机制。方法用三氯化铝致老年性痴呆模型大鼠为实验对象，以其学习记忆能力、背海马和齿状回内β-app阳性神经元的数量为指标，全面考察银杏黄酮抗老年性痴呆的作用。

If a man holds Crown land by fee-farm , by socage , or by burgage , and also holds land of another lord for knight's service , we will not have (by reason of that fee-farm, socage, or burgage) the wardship of his heir or of such land he holds of the other lord's fief .

如果一个人拥有官地的收费农场，由socage ，或由burgage ，还拥有土地的另一主奈特的服务，我们将不会有（因该费用的农场， socage ，或burgage ）的看管的他的继承人，或对这种土地的他拥有的其他主的封地。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。