查询词典 C. and F.

A R-C system with foci of 2 m and f-number F/4 was taken for an example, the principles of stray light eliminating and evalutiong in reflective optical system was put forward. Lens hood in the main mirror, lens hood outside and window shade, lens hood in the secondly mirror were designed by CAD modeling.

以焦距为2 m，相对孔径为1/4的R-C系统为例，介绍了利用计算机仿真技术进行消杂散光设计和评价的原理，结合CAD建模进行了主镜内遮光罩、外遮光筒、次镜百叶窗式遮光罩的设计。

Theorem Let M be a orientable or non-orientable closed surface, and f a C°-flow whose every singular point is isolated. Then f has POTP if and only if the following three conditions hold

定理 设M是任一个可定向或不可定向的闭曲面，f是M上任一个奇点均孤点的C〓-流，则f具有伪轨跟踪性质的充分必要条件是

Assuming R be a semiprime ring with extended centroid C and Q be the maximal right quotient ring of R, f be a noncentral multilinear polynomial over C.d and δ are derivations of R.

给出了，假设R是带有扩张形心的半素环，Q 为R的极大右商环，f是R的扩张形心C上的非中心值的多线性多项式。

In the text, major stochastic variable s such as f ,c and a and the upstream and downstream water levels that influence the dependability in analysis are discussed.

讨论了影响可靠度分析的主要随机变量如f＇、C＇、α及坝上下游水位等，并给出了《水工统标》的统计参数。

It is also pointed out that an n-mode boson coupled quadratic Hamiltonian can be diagonalized by a "negative unitary" matrix which is an element of complex symplectic group SP(2n,c),and an n-mode fermion coupled quadratic Hamiltonian can be diagonalized by a unitary matrix which is an element of complex fermion group F(2n,c).

并且指出，对于n模玻色子耦合二次型哈密顿量，通过一个负幺正矩阵它是复辛群SP(2n，c的元素可以把它对角化；对n模费米子耦合二次型哈密顿量，通过一个幺正矩阵它是复费米群F(2n，c的元素可以把它对角化。

The preliminary bioassary showed that at the concentration of 100μg/mL, the inhibitory rate of compounds Ⅴc to Fusarium graminearum was 81.3%;Ⅳe to Fusarium oxysporium was 83.4%;Ⅴe and Ⅴf to Cercospora sorghi were 79.7% and 72.4% respectively;Ⅳd to Fusarium graminearum and Fusarium oxysporium were 68.9% and 65.7% respectively.

初步生物测试结果表明：在质量浓度为100μgmL下，化合物Ⅴc对小麦赤霉病菌的抑制率达到了81.3%；化合物Ⅳe对马铃薯干腐病菌的抑制率达到了83.4%；化合物Ⅴe，Ⅴf对玉米弯孢病菌的抑制率也分别达到了79.7%和72.4%；化合物Ⅳd对小麦赤霉病菌和马铃薯干腐病菌的抑制率分别达到了68.9%和65.7%。

Admixed solutions are stable for 24 hours at 2°C to 8°C (36°F– 46°F) and at room temperature.

前4周每周给药600mg，第5周给药剂量为900mg，……。。混合溶液在2°C - 8°C或室温下24小时内稳定。

Admixed solutions are stable for 24 hours at 2°C to 8°C (36°F– 46°F) and at room temperature.

混合溶液在2°C - 8°C24小时内或室温下稳定。

With the elevated glucose and time extending,the expression was lower and the translocating rates was decreased,which was Hgroup＜Egroup＜Bgroup,(p＜0.01 or 0.05). Conclusion Short-term exposure ofβ-cells to high concentration of glucose triggers the synthesis and secretion of insulin.

结果为：A、D、G组培养24h及48h的N／C值均无统计学差异(p＞0.05)，B、E、H组培养24h的N／C值减少，存在统计学差异(p＜0.05)，48h的N／C值组间比较统计学差异显著(p＜0.01)。C、F、I组培养24h的N／C值下降趋势，但无统计学差异(p＞0.05)，48h的N／C值组间比较存在统计学差异(p＜0.01)。

The modeling methods about vestibule diaphragm, coupler and draft gear are introduced, too. Among the six Models, Model A and Model B can be used to study the vehicle stability and curve negotiation under different track situations. Model C and Model D can be used to carry out the stability, dynamic curving behavior and ride comfort of the high-speed passenger car. Model E and Model F are three-dimension train dynamic models which consist of three cars (head car, intermediate car and tail car).

所建立的6种动力学模型中，模型A和模型B可用于研究不同轨道条件下车辆的运动稳定性及动态曲线通过性能；模型C和模型D可以用来研究车辆的运动稳定性、动态曲线通过性能及运行平稳性；模型E和模型F是列车系统动力学分析模型，都是由三节车组成的列车单元，三车列车模型作为一个最小的列车单元，包含了头车、中间车和尾车，已能够反映整个列车的动力学特性。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。