得时

Among them, the absorption and emission wavelengths of cyanine dyes are mostly in the region of 600-800 nm, even beyond of 800 nm, so when they are used as probes, they can achieve the absence or reduction of background absorption, fluorescence and light scattering to improve the detection sensitivity.

其中花菁类染料的最大吸收波长大都在600～800 nm之间，有的甚至超过800 nm ，在制得探针用于生物样品的测定时可以有效避免生物体内自发荧光和散射光的干扰，极大的提高检测灵敏度。

Cyclohexanone yield of 85% and selectivity to cyclohexanone of nearly 100% were attained over the catalyst prepared under optimum condition.

在优化条件下制得的催化剂用於环己醇脱氢时，环己酮产品收率达85%，选择性近100%。

The results show that as the distance of waveguide to mirror is short, the couple efficiencies for EH11 mode of the cylindrical mirror and the spherical mirror are similar but the cylindrical mirror has stronger restraining function on EH21 and EH12 modes, and as the distance of waveguide to mirror is long, the cylindrical mirror has more restraining function on EH21 mode and less restraining function on EH12 mode.

同时相对球面反射镜，柱面反射镜对EH21模和EH12模具有更强的抑制作用。在d较大时，相对球面反射镜柱面反射镜对EH21模的抑制作用将会变得更强，而对EH12模的抑制作用将会减弱。标签 laser technique reflection coupling diffraction waveguide laser square waveguide cylindrical mirror

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。

The very center of a dartboard has a small red dot. This dot is called the bull's-eye. When you play darts, you want to hit the bull's-eye because you get a lot of points.

标靶的正中心有个小红点，这个点叫做「bull's-eye」，射飞镖时要射中红心才能得很多分。

We ran five miles, and came back dead beat.

我们跑了5英里，回来时累得要死。

"I was excited to see how George was going to conceive that, and when I read the script for the first time it was very obvious that he had gotten it dead-on," says Christensen.

"我很兴奋地看到乔治是如何构思这个故事的，当我第一次读到剧本时，情况就已经很明显：他已经诠释得十分精准了。"

And were not going to talk about spirituality and religion, although I will tell you that I have achieved a deathbed conversion.

我们不会谈论精神与宗教；但是，我得告诉你们，我已经做了临终时的忏悔。

We have to admit that Dickens has many traditional sense in his works, but his sense which connect the female with the happiness of a family doesn't sedulously debase the female but is in order to behave the female's goodness,blandness and selflessly dedicatory sacrifice spirit.It is of course a submission to the Dickens' original intention of art invent, that is, dig out the beauty of human and ask people for carrying forward humanitrianism.

我们不能不承认狄更斯再创作时带有很多的传统意识，但是他把女性与家庭幸福联系起来的观念并没有刻意的贬低女性，不尊重女性，而是有意的将女性的善良温柔和无私奉献的牺牲精神表现得淋漓尽致，这当然也是服从于狄更斯一贯的艺术创作初衷――－挖掘人性美和呼吁人类发扬人道主义精神。

So we say that we can absolutely avoid unnecessary and bothering process in mathematic deducibility if making full use of the method of Pseudo-spectral in more complex viscoelastic media, we can get wave equation when directly replacing with two kinds of relaxation modules.

由此可以说，如果采用伪谱法模拟其它更复杂的粘弹介质模型时，完全可以避免不必要的而且烦杂的数学推导过程；直接将体积松弛模量和剪切松弛模量代入即可得其波动方程。

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。