再选择

An optical system with refraction and total internal reflection was proposed according to the luminous characteristic of LED and the law of energy conservation. The ordinary differential equations satisfying the spots on the contour curve of TIR refractive and reflective planes were established. The coordinates of points on profile curves were obtained by solving these ordinary differential equations using Runge-Kutta method. The profile curves were acquired by curve fitting of the coordinate spots with software UG, and then TIR model of the projector and data of the surface shape suitable for NC manufacture were obtained.

根据LED的发光特性以及能量守恒定律选择采用折射全反射光学系统，通过建立TIR折射面及全反射面轮廓曲线上的点所满足的常微分方程，利用RungeKutta求解常微分方程得到轮廓曲线上点的坐标，再在UG中对坐标点进行曲线拟合得到轮廓曲线，进而得到TIR模型及适合数控加工的面形数据。

The mind no longer needs to invent its reality -- the reality is in its face, rapidly approaching dead-on.

心智不必再虚拟现实――现实正扑面而来，而且迅速接近正确选择。

To demote a field, select the field and then click Demote on the toolbar.

若要降级字段，请选择字段，再单击工具栏上的"降级"。

Of course if we chose to go extinct this would be useful; but at this time it is not useful and so we will find another resource to resolve our lack until humans rise more in awareness and cease to desecrate what is required to sustain the whole.

当然，如果我们选择灭绝的话，这是有用的，但是在此提升时候这却并不是有益的，因此我们将会找到另一种资源来解决我们氧气匮乏的问题，直到人类更加意识到这一点，并停止再糟蹋维系整体所需要的事物为止。

SPDR Barclays Capital International Treasury Bond, an exchange-traded fund, is another good choice, but only if you can find a discount broker that won't charge commissions to reinvest your interest income.

上市交易基金SPDR Barclays Capital International Treasury债券是个不错的选择，但只有在你能找到不收取佣金的折扣经纪人，能将利息收入再投资的时候才应该考虑如此。

Coming up with a new system to reuse dishes, choosing waste disposer and other spontaneous actions can be seen at many campuses in Japan.

建立一种新的系统对饭菜进行再利用，选择废物处理器，以及其他的一些自发的活动可以在日本的许多大学里见到。

RESULTS: Stent materials play an important role in reducing inflammatory reaction and restenosis following stent implantation. As a medical material for humans, the features of stent should be meet the requirements of reliable distensibility, mechanical persistence, good flexibility and geometrical stability, possible small diameter, excellent blood compatibility, as well as good corrosion resistance. All of these depended on the mechanical and physical features of materials.

结果：支架材料的选择在减少机体炎症反应的强度和持续时间，减少支架置入后血管内再狭窄的发生起着重要的作用，作为人体医用材料，对支架各方面性能都提出了很高的要求，包括可靠的扩张性和力学持久性、良好的柔韧性和几何稳定性、尽可能小的外径，优异的血液相容性和耐蚀性，而支架上述特性都依赖于材料的力学和物理特性。

As a medical material for humans, the features of stent should be meet the requirements of reliable distensibility, mechanical persistence, good flexibility and geometrical stability, possible small diameter, excellent blood compatibility, as well as good corrosion resistance.

结果：支架材料的选择在减少机体炎症反应的强度和持续时间，减少支架置入后血管内再狭窄的发生起着重要的作用，作为人体医用材料，对支架各方面性能都提出了很高的要求，包括可靠的扩张性和力学持久性、良好的柔韧性和几何稳定性、尽可能小的外径，优异的血液相容性和耐蚀性，而支架上述特性都依赖于材料的力学和物理特性。

The scale 7, 10 and 13 are used to extract the feature vectors, which are used to train the artificial neural network. The trained neural network is used to classify semen cuscutaes and Japanese dodder seeds, which are collected from different places all over the country.

选择第7、10、13分解层数的特征向量，进行人工神经网络训练，再用训练出来的网络对不同产地的植物种子菟丝子和金灯藤所得FTIR小波提取的特征向量进行分类。

I couldn't live my life doing that thing of walking five steps behind, ducking into alleyways.

我不能再过那种比别人慢半拍的生活——躲避到小巷里，于是我选择了退出。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。