查询词典 S-curve

A C-C bond type radical initiator i.e. 1,1,2,2-tetraphenyl-1,2-ethanediol and a S-S bond type thermal iniferter, i.e., tetraethyl thiuram disulfide were used to consist of new reverse ATRP initiation systems TPED/FeCl3/PPh3 and TD/FeCl3/PPh3, respectively."Living"/controlled polymerizations of a polar monomer MMA and a non-polar monomer St were investigated with the initiation systems as well as other new initiation systems; behavior of vinyl polymerization with a new asymmetrical C-C bond type thermal monomeric iniferter was studied also.

前者选用C-C键型的自由基聚合引发剂1，1，2，2-四苯基-1，2-乙二醇、S-S键型的热iniferter二硫化四乙基秋兰姆组成新引发体系TPED/FeCl3/PPh3、TD/FeCl3/PPh3，研究这些引发体系引发MMA、 St聚合的&活性&/控制聚合行为，同时研究一些其他新引发体系；后者合成了一种新的非对称C-C键型热引发转移终止剂，并研究其自由基聚合规律。

In English, clear unaspirated stops only in the s-word after the first, and Qing aspirated stops in word-initial, two consonants in a complementary distribution : s-after there is no aspirated stops,...

在英语中，清不送气塞音只出现在词首s-之后（spin、star、scar），而清送气塞音出现在词首（pin、tar、car），两套辅音处于互补分布：s-之后不存在送气塞音，。。。

A type of high-performance fuel-rich propellant for the unchoked ducted rocket has been developed. The burning rates of the fuel-rich propellant are greater then 2mm/s at 0.5MPa, the greatest one is up to 4. 05mm/s. The burning-rate exponent is greater than 0.5, the highest one reaches 0.58. The fuel-rich propellant grain can combust steadily in the gas generator at 0.226MPa. The uniaxial mechanical properties and the processability of the fuel-rich propellant are good.

研制了一类用于非壅塞固体火箭冲压发动机的高性能铝镁贫氧推进剂：0.5MPa下燃速高于2mm/s，最高者达4.05mm/s；燃速压强指数高于0.5，最高者达0.58；直连式实验时，在0.226MPa下燃烧稳定；具有良好的力学性能和工艺性能。

The property S ≈ C being undecidable in general, validators are necessarily incomplete and should reply false if they cannot establish S ≈ C.

通常S≈ C性质是不可判定的，因此验证器必定是不完备的，在无法得到S≈ C时它应该回答&false&。

Our results shown: Compared with those of the unradiated rats, the number of S-100 protein immunoreactive positive glial cells in the brains of the irradiated rats increased gradually. More S-100-positive glial cells with multiple long processes and hypertrophic cell bodies were also observed in these areas.

在此基础上，又做了同一照射剂量（20Gy）照射大鼠半脑后不同存活期间（id，7d；14d，Zld，28d）大鼠全脑S－100动态变化的观察，发现其规律如下：在上述时间点大鼠脑内各部位卜刁m蛋白免疫反应细胞数量进行性增加，伴有 S－100免疫阳性细胞的胞体逐渐增大和交起增多，与正常对照组具有明显的差异。

Occasionally, privileged guests gain access to Mr Ospel's inner sanctum - a large, light, but surprisingly unrevealing office dominated by a giant model of Alinghi, the UBS-sponsored yacht that has twice won sailing's coveted America's Cup.

偶尔，贵宾也会获准进入奥斯佩尔的内室--一个宽敞、明亮但异常普通的办公室，显眼的位置摆着一艘阿灵基号巨型船模--瑞银赞助的这艘帆船曾两度夺得令人艳羡的美洲杯(America's Cup)帆船赛冠军。

this paper discussed several untestable assumptions which were often used in epidemiologi-cal observational studies,and some paradoxical results that may arise under different assumptions were showed.simpson's paradox and lord's paradox were introduced.assumption of treatment assignment in causal inference of epidemiological studies,assumption of control group in evaluation of exposure ef-fects,and assumption of missing data mechanisms in incomplete data analysis were also discussed.

本文主要讨论流行病学观察性研究中几种常用的假定，介绍simpson's悖论和lord's悖论，逆回归问题，以及在不同假定下可能出现的相互矛盾的结果。探讨流行病学研究的因果推断中处理分配机制的假定，暴露作用评价中对照组的模型假定，以及不完全数据分析中缺失数据机制的假定。

DVB-S (Digital Video Broadcasting by Satellite) modulator is one of the digital headend devices compatible with DVB-S standards, which can be extensively applied to satellite-specific digital video broadcasting and related services.

DVB-S(Digital Video Broadcasting by Satellite)调制器是符合DVB-S协议的数字电视前端设备之一，也满足我国数字电视卫星广播标准，该设备可以广泛应用于数字电视卫星业务和相关数字电视业务。

In English there is much about boats and water idioms, in the Chinese language does not correspond to exactly the same idiom, such as "to rest on one's oars","to keep one's head above water","all at sea" and so on.

英语中有许多关于船和水的习语，在汉语中没有完全相同的对应习语，如&to rest on one's oars&，&to keep one's head above water&，&all at sea&等等。

When it analogized the agency's investigative power to a grand jury's: an agency with a proper legislative authorization"can investigate merely on suspicion that the law is being violated,or even just because it wants assurance that it is not."

里， 338 美国。632 (1950)，当它 analogized agency。。s 调查力量对盛大 jury。。s：一个代办处与适当的立法 authorization。。can 仅仅调查在怀疑，法律被违犯，甚至正因为它想要保证它不是。。。

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。