查询词典 cavity

It is necessary in this method that the sensing cavity has an optical path length imbalance greater than the coherence length of source such that under normal conditions no interference effects are observed at its output.

在这种方法里必须使传感腔的光程差大于光源的相干长度，使得在通常状态下观察不到干涉效应的输出。

Mangifera india ; fruits ; lenticel ; wax ; secreting cavity ; parenchyma cell ; starch grain ; scanning electron microscope ; microstructure

芒果；果实；皮孔；蜡质；分泌腔；薄壁细胞；淀粉料；扫描电镜；显微结构

On the basis of the Leonov viscoelastic constitutive model, oscillatory shear flow of polymer melts in cavity during injection molding (including oscillation shear stress, melt temperature rise generated by oscillation, oscillation pressure gradient, solidified layer and oriented layer) has been researched for the first time.

本文采用了Leonov粘弹本构模型，首次研究了在注射成型中模腔内聚合熔体的振动剪切流动规律（包括振动剪切应力、振动产生的熔体温升、振动压力梯度、固化层和取向层），在研究模腔内振动剪切流动机理的同时，还在实验上研究了振动作用对制品结构和性能的影响。

It isto introduce the libretto, music composition and features ofvocal accompaniment of Chenhe high cavity.

更多高腔的音乐组成以及辰河高腔的帮腔特点。

Cavity displacement method and polymer pickling process could be used for the preparation of linalool formulation, which could provide new control measures to spacial repellent for insect, environmental contamination and insect resistance.

采用空穴置换法与聚合物浸渍法均可达到对芳樟醇的理想释控状态，为空间驱避昆虫、缓解环境污染和抗药性等问题提供了新的防控手段。

Through valve: A valve with a linear movement of the closure components, there is a single seat or multi-seat, and its valve seat area because there is a spherical cavity and different.

直通阀：一种阀门，带线性运动的截流元件，有单阀座或多阀座，它的阀体因为阀座区域有一个球形的内腔而与众不同。

A simultaneous dual-wavelength continuous wave, quasi-cw or linearly polarized wave diode-end-pumped Nd:YAG laser operating at 1319nm and 1338nm is demonstrated. To the best of our knowledge, our experimental results achieve the highest level in the domestic domain. The simultaneous dual-wavelength laser provides an experimental basis for generating highly coherent THz wave radiation of 3.23THz by nonlinear optical difference frequency method.2. A diode-end-pumped Nd:YAG crystal, type-I critical phase matching LBO crystal intra-cavity frequency doubled, simultaneous multi-wavelength red laser at 659.5nm, 664nm and 669nm is firstly realized.

本论文主要围绕用于差频产生THz辐射源的多波长激光器及THz光子晶体的带隙特性分析而展开，论文的主要内容包括：一、从LD端面泵浦固体激光器的激光阈值公式出发，理论计算了腔镜对于两个波长的透过率关系，实现了LD端面泵浦Nd：YAG 1319nm/1338nm双波长激光连续、准连续及线偏振稳定输出。

A new method for calculating selected frequency and linewidth of a passive cavity for pulsed dye lasers is presented.

本文提出一种计算脉冲染料激光腔的频率特性的新方法。

The change of spectral linewidth is more sensitive to the effect of external reflection coefficient than the external cavity length.

外腔反射率对光谱线宽的影响要比外腔腔长灵敏得多。

Then, we do experimental research on the single frequency and linewidth narrowing of fiber ultra-short linear cavity laser.

其次，我们在第二章理论分析的基础上，对单频单偏振环形腔窄线宽光纤激光器进行了实验研究。

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。