光点

The coherent light was to be the new information carrier with capacity a hundred thousand times higher than point-to-point microwaves based on the simple comparison of frequencies: 300 terahertz for light versus 3 gigahertz for microwaves.

相干光被认为是容量比之点到点的微波要高十万倍的新的信息载体--根据对频率的简单比较：光的300 terahertz （1 terahertz=1012赫兹）对微波的3 gigahertz （1 gigahertz=109赫兹）。

However, this flexibility brings a great deal of inconvenience to shape design for typical demand of design is not only qualitative but also quantitative, such as a global smooth and fair surface approximating a group of scattered points and interpolating a section curve .

但这种灵活性也给形状设计带来许多不便：典型的设计要求既是定量的又是定性的，如"逼近一组散乱点且插值于一条截面线的整体光顺又美光的曲面"。

By anchoring an imaginary spring between each data point and deformable curve or surface, the fairing model is established. Then FEM is used to solve the deformation problem of the model caused by imaginary springs and a bicubic B-spline surface patch is taken as one element. Lastly the B-spline active surface model is applied to surface reconstruction from layer data and the problem resulted from fitting for uneven cross-sectional curves can be solved.

通过在数据点与模型之间连接虚拟弹簧，建立光顺模型，并以双三次B样条曲面片作为单元，运用有限元法对模型在虚拟弹簧作用下的变形问题进行求解，得到光顺后的B样条曲面；并在此基础上，提出了一种新的基于断层数据的表面重建方法，可很好地解决不均匀截面族的曲面生成问题。

A thicker active layer will absorb more incidents light, but too thick active layer will result in increasing in both series resistance and dark current, which will degenerate the performance of the device.

元件中不同的主动层厚度会有不同的光吸收量，较厚虽然可增加光吸收量，但相对地串联电阻、暗电流等特性皆会因厚度增加而增加，上述几点都会影响太阳电池的转换效率。

And their maximum photosynthetic rate and light compensation point were insignificantly different.

二者最大光合速率和光补偿点无明显差异，二者均无明显的光呼吸。

The moving path and the instantaneous speed of the workpiece center point on the crank rocker arm were derived.

研究了曲柄摇杆机构中各杆长度对工件中心点运动轨迹及瞬时速度的影响规律，寻求出了符合设计条件的最优组合参数，并将其成功地用于立方氮化硼材料的精密抛光技术中，加工效率比传统的抛光方式提高50%，取得了良好的效果。

It can be concluded that the blue emission is attributed to the irradiative recombination in the QWs, and the green emission is attributed to that in wider QWs and In-rich QDs.

通过以上的结果，我们认为蓝光发射基本上源于InGaN量子阱发光，而绿光发射则起源于量子阱和量子点的发光。

This works fine for isotropic point lights and similar, but when using measured light data, one

作品有完美等方性的点光和类似的，但是当使用标准的光数据时候，能得到一结果

When there is no trailing of the minor planet image (or you are measuring the middle of a trail) the time of observation is the mid-exposure time. If you are measuring both ends of a trail, then one end is associated with the start of the exposure, the other with the end.

如果你测量的是小行星拖线的中部或该小行星没有明显的拖线，那么你应该使用你暴光时间的中点时刻作为该测量点对应时刻，如果你既测量了起点又测量了终点，那么你应该分别对应的是暴光的起始时间和终了时间。

Ideally, the parallel rays which reach the pupil at different positions in a meridian will cause various sensitivity responses and can be fitted by a 2nd order parabolic curve.

此曲线的峰值点的位置即是通过水晶体后和光杆细胞轴向平行的入射光的入射位置。

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。