失重

But with increasing temperature,homolysis is enhanced,especially for PPTA.When the temperature reaches 1000℃,PPTA takes higher mass loss than PMIA.In both inert gas and air,mass spectra of volatiles are obtained,and PMIA and PPTA mostly show the same mass signals.

在低降解温度时，采用水解机制解释了PMIA纤维三步的失重过程和较低的耐热性能；而随着温度升高，均裂机制增强，导致PPTA纤维在1000℃时的失重大于PMIA纤维。

Objective To study the effects of vitamin K on bone metabolize in simulated weightlessness rats.

目的探讨维生素K 对模拟失重大鼠骨质的影响，为失重骨丢失的防护提供实验依据。

On the basis of the experimental results, the effect of mineral substances on the combustion characteristics of micro- pulverized coals was analyzed.

通过对所获得的热失重和失重微分曲线的分析，比较了各种矿物质对3个煤种燃烧特性的影响。

The animals in the simple fracture group were free activity, while in the weightlessness group were tail-suspended.

单纯骨折组骨折形成后动物自由活动，失重组采用头低位尾悬吊模拟失重状态。

Results ①After 14 days of tail suspension, the ratio of wet weight of soleus muscle ...

结果 ①模拟失重14d后，比目鱼肌发生明显的萎缩，比目鱼肌湿重体重比由吊尾前的 38.8(mg·10 0 g- 1 )降低到 2 3.1，而吊尾加CLFS 14d后比目鱼肌湿重体重比仅下降到 32 。5 ，表明CLFS可有效的防止模拟失重所造成的肌萎缩。

In the weightless environment, that is a state of weightlessness

答：在失重环境下，这是一个失重状态

Because the renin-angiotensin system participate in not only humoral regulation of body fluid and systemic blood pressure but also structural and functional autoregulations in many tissues, we speculated that it may play a pivotal role in arterial structural and functional autoregulations, myocardial and renal adaptational changes due to simulated weightlessness.

我们推想局部肾素-血管紧张素系统(local renin-angiotensinsystem，L-RAS)在模拟失重引起的动脉、心肌和肾功能等的适应性变化中可能发挥关键性调节作用；且本室前一工作已发现4-wk模拟失重大鼠基底动脉与股动脉血管组织血管紧张素原(angiotensinogen，AGT)的基因表达分别呈增高与降低变化。

Effectiveness of simulated IAG in counteracting vascular structural adaptational changes and the angiotensin Ⅱ receptor 1 expression changes induced by simulated weightlessness This part of the work testified previous morphological results about the vessels obtained in our laboratory using electron microscopy.

每日-G〓暴露1h即可防止模拟失重大鼠动脉血管出现适应性结构重塑本实验电镜观察再次验证了本实验室早先关于模拟失重大鼠脑及后肢动脉血管相反方向结构重塑变化的报道。

The products were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy and thermal gravimetric analysis.

采用X射线衍射仪、傅里叶变换红外光谱仪、扫描电子显微镜、透射电子显微镜和热失重分析仪等对产物的组成、形貌以及热失重情况进行了表征。

Objective To examine the myosin heavy chain expression in intrafusal fibers in rat soleus muscle before and after simulated weightlessness and to analyse the mechanism involved in muscle spindle deterioration during simulated weightlessness.

目的检查模拟失重对大鼠比目鱼肌梭内肌纤维肌球蛋白重链表达的影响，探讨模拟失重所致肌梭退变的机制。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。