光周期的

At the dimmest part of a Cepheid's cycle, the ionized gas in the outer layers of the star is opaque, and so is heated by the star's radiation, and due to the increased temperature, begins to expand.

在造父变星的一个光变周期内，恒星外层的电离气体是相对不透明的，因此会吸收恒星的辐射而升温，并开始向外膨胀。

Compared with the light equation for cylindrical lens, the equation for conelens is much more complicated.

柱透镜在近轴平行光入射时，光线的振幅、相位、周期保持不变，而锥透镜的三者均发生变化，而且求解锥透镜的光线方程也比圆柱透镜复杂得多。

Then the changes of cell shape and ultrastructure were observed by microscope and transmission electron microscopy, and the percent of cells in the G1 phase and SA- ft -galactosidase activity were measured with flow cytometry and cytochemistry staining, respectively.

从光镜、透射电镜观察细胞形态及超微结构的变化；流式细胞术分析细胞周期，计算G1期细胞的比例；SA-β-半乳糖苷酶的细胞化学染色，确定成功建立体外细胞衰老的模型。

We also calculated the details of the eigenfunction.

由于周期折皱界面引起的激子质心运动量子化使得光吸收谱中出现了新的几乎等距的吸收峰。

The main factors affecting interferometric lithographic results are deeply analyzed. The methods for improving interference pattern contrast and period stability are also studied.

对影响干涉光刻结果的主要因素作了深入的分析，研究了提高干涉图形对比度和周期稳定性的方法。

This pupil filter can realize different types of superresolution by changing the periods of sine function or the transmittance of the central point.

选择正弦函数的周期以及光瞳中心点透过率变化两个参量来实现对最终超分辨效果的调节。

I call this "fast thinking" form of superintelligence "weak superhumanity". Such a "weakly superhuman" entity would probably burn out in a few weeks of outside time.

我把这种光靠速度取胜的人工智能种类称为"弱势人工智能"，这种形式的人工智能可能在几个星期内就耗尽了它全部生命周期。

The wavelength tenability of QPM-OPOs has been theoretically analyzed based on the Sellmeier equation of periodically poled crystals and the QPM theory.

基于周期极化晶体的Sellmeier方程和准相位匹配理论，对准相位匹配光参变振荡器的调谐特性进行了理论分析。

Methods Human prostate cancer PC-3 cell, breast cancer ER-75-30 cell and lung cancer A549 cell were cultured in RPMI medium 1640.Light microscope,transmissional electron microscope, flow cytometer and immunohistochemical method were used to observe apoptosis morphological changes of three kinds of tumor cell lines, time and dose effect relationship and to detect expression of bcl-2 and bax.

方法人前列腺癌 PC-3细胞株、乳腺癌 ER-75-30细胞株和非小细胞肺癌 A549细胞株经培养后，采用光镜、电镜、流式细胞仪和免疫组化方法研究 188Re诱导 3种肿瘤细胞凋亡的形态学变化、时间剂量效应关系、细胞周期依赖性以及凋亡相关基因 bcl-2和 bax在其中的表达情况。

The electric machine flexiblely back-and-forth frontal and reversed wheel to achieve pendulum back and forth running. The feedback signal adopts light sensor to detect. All of signals are synthetically analyzed and disposaled by the singlechip.

步进电机灵活的正反转实现了摆锤的来回摆动，反馈信号采用光传感器来检测，各探头信号经单片机综合分析处理，同时能显示周期。

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。