查询词典 extinction

As a example, four kinds of switch structures are discussed, numerical results show that the off/on extinction ratio can be less than -90 dB and the dynamic switching range can be less than 0.03 Pc/100, and as an optical stabilizator, the fluctuation of the limiting power level can be less than 10-7Pc.

数值分析表明，级联耦合器作为全光开关，消光比可小于-90 dB，动态开关区可小于3×10-4 Pc；作为光功率稳定器和光学限幅器，其输出光功率起伏可小于10-7 Pc。标签非线性耦合光开关光限幅器 nonlinear coupling optical switch optical limiter

The discontent led to a feud which terminated at the Battle of Lippau (30 May, 1434) with the death of Procopius, the Taborite leader, and the almost total extinction of this party.

不满，引发了一场争执，其中终止战役lippau （ 1434年5月30日）与死亡的procopius ， taborite领导人，而几乎完全灭绝这个党。

It was showed hyperbranched polyester was more than commercial resinous polyols in impact resistance and transparency of matt topcoating film,and its extinction was worse.

以超支化聚合物作为基料与脂肪酸等单体合成了超支化树脂，并利用红外光谱，GPC等仪器对超支化树脂进行表征；同时研究了超支化树脂在聚氨酯哑光面漆中的应用，研究表明：实验所制备的超支化树脂虽然消光效果较差，但是采用超支化树脂部分代替商业哑光树脂可以改善漆膜的透明性及耐冲击性。

The cause of dinosaur extinction is still unascertainable today.

现在恐龙灭绝的原因仍无法确定。

Amphibole, an important product during retrogression of UHP eclogite to amphibolite, exhibits few brittle deformation features, and does not show any intragranular microstructures indicative of crystal deformation such as undulose extinction, deformation lamellae, subgrain boundary and bulging.

角闪石是超高压榴辉岩退变质过程的产物，在光学显微镜下没有明显的脆性破裂变形，也不显示任何指示晶体塑性变形的晶粒内部显微构造，例如不均匀消光、变形叶理、亚颗粒边界和凸出褶皱等。

But the unevolved GM deserved extinction.

但是停止进化的通用罪有应得。

But the unevolved GM deserved extinction.

然而，是通用汽车的停滞不前才使其踏上破产之路。

But the unevolved GM deserved extinction.

底特律雇佣了如此多的员工，并在美国文化中起着重要作用，以至于政府觉得它必须得到保护。

The polarizer is the key component in the treating of polarized information and the application of polarized technique. Polarizing prism talent showing itself for its high extinction ratio, good transmittance and powerful optical damage threshold. And from 1960s on, when the first laser appeared, polarizing prism is unsubstituted as an important polarizer in laser polarization technology.

偏光器件是偏光信息处理和偏光技术应用的核心元件；偏光棱镜以其较高的消光比、透射比和较强的抗光损伤能力在众多偏光器件中脱颖而出，特别是上世纪60年代后，随着激光器的诞生，偏光棱镜在激光偏光技术的应用中更是发挥了难以替代的重要作用。

Hopefully, this study will help society find the best way to help the dwindling wobbegong back from the brink of extinction.

很期待，这个研究将会帮助这个社会，找到最好的方式，帮助正在减量的斑纹须鲨，从灭绝的边缘挽回。

I go to school at night.

我是上上学。

Clear Tip Nasal Aspirator: A soft time and gentle suction action makes removing excess mucus easy.

鼻吸明确提示：一个柔软的时间和温柔吸力行动使消除过剩的粘液容易。