失重的

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。

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。

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。

The results show that antioxidation property of the modified phosphatic coating after oxidized for 30h at 700℃ is superior, weight loss percent of coating sample is only 1.76％. After thermal shock, i.e. for 3 min at 900℃ for 2 min at room temperature circulating about 30 times, for 3 min at 1100℃ for 2 min at room temperature circulating about 10 times, weight loss percent of coating sample is up to 1.97％, and coating don't slough off.

结果表明：在700 ℃氧化30 h后，改性磷酸盐涂料的防氧化性能优异，涂层试样的氧化失重率仅为1.76％，经过900 ℃、3 min 室温、2 min循环30次和1100 ℃、3 min 室温、2 min 循环10次连续热震后，涂层试样的失重率为1.97%。

Meanwhile, the differences of prominence about effects of factors and best technological conditions are found by the means of perpendicularity analysis.(2) The properties of semicoke from North Shannxi and coke from Shanxi are compared.

包括对陕北低变质煤煤质特征分析以及干馏失重受干馏温度、热解时间、粉煤粒径的影响规律研究，并运用正交分析的方法得出干馏温度、干馏时间、粉煤粒径对热解失重影响的显著性差异和最佳工艺条件。

Polystyrene devolatilized entirely at temperatures in the vicinity of 680 K. SBR and tyre chunks showed signs of weight loss at temperatures as low as 550K (15wt% loss). This may possibly be associated with evolution of aliphatic pyrolysates of butadiene.

在温度接近680K时，聚苯乙烯完全热解，在温度550K时，丁苯橡胶和轮胎块粒出现失重迹象（15%失重率）；这可能与丁二烯的脂族热解产物的演变相关。

UV and NTG mutant YT253 is screened from monoploid YT16, with selecting index hexokinase and ergosterol has increased 200% and 75% respectively.

YT253在1：2加水比的糖化醪中发酵，30℃，60h，二氧化碳失重34.2g，酒精度13.8％，残糖1.0％；与亲株相比二氧化碳失重增加23％，产酒精能力提高了23.2％。

The differential scanning calorimetry and thermal gravimetric analysis exhibited that the transition temperature and the temperature at which 5% mass loss occurred of PI-19 were 256 ℃ and 380 ℃, respectively.

示差扫描量热和热失重分析结果显示，PI-19的玻璃化转变温度为256 ℃，在5%的热失重温度为380 ℃，表明具有非常好的热稳定性。

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。