查询词典 quasi

This thesis focuses the research on the theory and application of the electro-optic effect in the quasi-phase-matching nonlinear optics based on periodically poled lithium niobate.

本文旨在对电光效应基于周期性极化铌酸锂的准位相匹配非线性光学中的理论及其应用进行研究。

It was found experimentally that HIC happens via nonacid nucleation and then quasi-cleavage along {111} planes when C〓 is higher. Otherwise, in the case of lower C〓, hydrogen enhances ductile fracture via hydrogen-enhancing microvoid nucleation, growth and connection.

对预充氢的310钢薄膜进行TEM原位拉伸表明，当氢浓度较高时，氢致断裂通过空洞形核，然后沿{111}面准解理扩展的方式进行；当氢浓度较低时，氢促进纳米空洞形核、长大和连通，进而导致韧断。

The quasi-phase-matched conditions of collinear and noncollinear optical parametric generator are analyzed and the deflection angle is achieved.

分析了共线和非共线光学参量产生器的准相位匹配条件，得出满足准相位匹配条件的光偏折角。

Gain Bandwidth of Periodically Poled RbTiOAsO4 in Noncollinear Quasi-Phase Matching.

非共线准相位匹配周期极化RbTiOAsO4的增益带宽。

Fourth, it conducts the formula deduction, analysis and numerical calculations of the noncollinear quasi-phase matching gains and the output parametric spectrum, which leads to the conclusions that under the same circumstances, the gains of noncollinear interaction will be much less than those of the collinear interaction, and consequently the noncollinear interaction possesses the larger acceptance bandwidths than that of the collinear interaction.

对非共线准相位匹配的增益和输出参量光的允许波长进行了公式推导、分析和计算，得到了允许信号光波长的精确公式和关系曲线。

Based on noncollinear optical parametric amplification in periodically poled lithium niobate which is realized by quasi-phase matching technology, we consider the possibility of semi-noncollinear phase matching method between collinear and noncollinear geometry.

基于周期性极化铌酸锂晶体的准相位匹配光参变放大过程，通过倾斜周期极化铌酸锂晶体中极化域一定角度，实现了介于共线匹配方式和非共线匹配方式之间的一种半非共线型准相位匹配方式，并以该匹配方式下的各光矢量几何关系得出相位匹配曲线，找到在特定抽运光和信号光波长下能获得宽带增益放大的周期极化长度。

Second, to conduct a quasi-experimental design using nonequivalent groups to study the effects of adaptive pointer during math-learning.

第二，我们实作了一个不等组前后测的准实验设计来研究适性指标在数学学习的效果。

This research adopts the Nonequivalent Quasi-experiment design. The research's two similer classes with eight-graders are chosen as the research samples.

本研究采不等组准实验研究法，以高雄县某一所国中，研究者所任教的班级当中，挑选两个性质较为相似的二年级班作为研究样本。

The research design was a nonequivalent groups pretest-posttest quasi- experimental design. Fifty-three fourth grade students in two different classes of an elementary school in Hsinchu county of Taiwan participated in this study.

本研究采不等组前后测准实验研究设计，以新竹县一所国小四年级的两个班级学生为研究样本，随机抽取一班为实验组，一班为控制组。

The nonequivalent pretest-posttest design was adopted as a quasi-experimental study.

据此整理结论并提出建议，作为日后教育界夥伴教学或研究之参考。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。