自由落体

Objective To investigate the changes and significances of neurocytes apoptosis and serum nerve growth factor after cerebral contusions.

目的 探讨大鼠脑挫裂伤后海马区神经细胞凋亡及血清神经生长因子的变化及意义方法按照改良Feeney自由落体脑损伤模型方式制作大鼠左顶叶脑挫裂伤模型，应用酶联免疫吸附法和原位细胞凋亡法，分别对脑挫裂伤后0.5，1，3，6，12，24，72，120，168，240h各时相点血清NGF含量及脑组织细胞凋亡进行检测。

Those 7,000 tons of free-falling bombs caused havoc, concussions, misery, and considerable destruction, but after the bombs stopped falling most German soldiers were able to come up out of their dugouts and man their weapons .

那七千吨自由落体炸弹导致了混乱、震荡、惨状，并造成巨大破坏。只是轰炸一停，大部分德军士兵就从掩体里爬将出来，准备开火。

Whether to Galileo in Pisa done free fallers experiment, history there have been two different kinds of support or oppose the view.

对于伽利略是否在比萨斜塔做过自由落体实验，历史上一直存在着支持和反对两种不同的看法。

It introduces the cross correlation speed measurement, gravity-fed flow experiment device and the gas-solid flow laboratory equipment, to do systemic experimental research on the characters of the gas-solid flow measurement.

分别采用了相关速度测量法、自由落体实验平台法、气固两相流综合实验平台法，对气固两相流的静电法测量特性作了系统的实验性研究。

Methods: A total of 120 SD rats were allocated into traumatic brain injury group, TBI plus whole blood group, TBI plus lysed RBC group, and TBI plus parked RBC group, 30 rats in each group. Firstly, the TBI model of rats was established by applying a free-falling device in 4 groups, then WB, LRBC, and PRBC were infused into infused cortex to produce model of TICH.

120只大鼠随机分为创伤性脑损伤组，TBI加注全血组，TBI加注溶解红细胞组和TBI加注压积红细胞组，每组30只。4组均采用自由落体打击法造成大鼠脑外伤。

Text或text message,例如A team of professional skydivers text messaged while freefalling from 12,000 feet.

一群职业高空跳伞员一边从12，000呎高空以自由落体方式坠落，一边发简讯。）这确有其事，目的是要缔造金氏世界纪录。

First, traders pushed up market prices, then push up the overall follow-up steel prices, pushing up the market, inventory costs, and interaction, the formation of steel prices pushed up the momentum, but the final release as a result of excessive steel production capacity, the downstream demand there is no substantial support, resulting in the second half of the last quarter-year of free-falling market prices of steel.

先是贸易商拉高市场价格，随后钢厂跟进推高整体出厂价格，推高市场库存成本，进而相互作用，形成钢材价格的推高的动力，但是最后由于钢厂无节制释放产能，下游需求没有实质性的支持，导致最后一季度下半旬钢材市场价格的自由落体。

The theoretical background of equivalence principle is briefly given,and the experimental tests of the equivalence principle is discussed in detail,via free-fall method and torsion balance .

本文简要阐述等效原理的研究背景，通过对自由落体法和扭秤法检验等效原理的详细介绍来具体讨论等效原理的实验检验。

These powerful falls have certainly had an effect on thrill seekers especially the free failers jumping off of the gorge bridge.

雄伟壮观的瀑布令那些寻险探奇的人们心驰神往，尤其是那些喜欢从峡谷大桥上纵身跳下的自由落体者。

You and I, and everyone else in America, own the most stunning oceanfront property, the most amazing mountain ranges, the highest free-falling waterfall on the continent, and the most spectacular collection of geothermal features on the planet.

你和我，以及美国的其他人，拥有最漂亮的海滩，最惊奇的山脉，大陆上最高的自由落体瀑布，和地球上最壮观的地热特征资源。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。