谐振

The functional relation can be proved basis on real model of the quartz crystal.

晶体在实际使用中，经常工作于负载谐振状态。

A U like shape on the curve of fundamental mode waist in the active medium versus pump power, at different cavity lengths of the laser diode end pumped Nd:YVO 4 solid state lasers with a flat flat resonator structure, is analyzed by means of the transform circle approach.

运用谐振腔变换圆理论，详细分析了激光二极管抽运的Nd ：YVO4 平行平面腔固体激光器振荡光在晶体内的基模光斑半径随抽运功率变化的U形曲线。

Is the universe black hole reflection Gamma ray and Earth's resonance frequency is same, with solar radiation dual function.

就是宇宙黑洞反射的伽马射线和地球的谐振频率相同，和太阳辐射的双重作用。

The exit of free gaseous phase has significant consequences on the transient waterhammer pressures and resonance of slurries in pipelines.

自由气体的存在对管系的谐振频率及浆体水击压强影响较大。

Considering the effects of free gaseous phase,the water hammer and resonance ofslurries in pipelines have been analyzed,the improved mathematical formulation of wavespeeds and transient pressures,and some precautionary methods are also put forward.

考虑自由气体的存在，对浆体输送中的水击和谐振进行了分析，得出浆体水击波速和压强计算式，并提出相应的预防措施。通过理论和实验研究，得到以下重要结果

By performing appropriate time-dependent gauge transformation,closed formulas for the time evolution of quantum states and Berry phases are obtained.

通过适当的含时规范变换得到有限维含时谐振子量子态时间演化的封闭解，并给出量子态的Berry相位。

Taking advantage of gauge transformation and dipolar approximation, we qualitatively derive rotating Bose-Hubbard model.Then finite temperature phase boundary between superfluid phase and normal state in rotating Bose-Hubbard model is analytically derived by studying the stability of normal state in rotating bosonic optical lattice.We also analytically prove that as the function of rotation angular velocity the oscillation of critical hopping matrix directly follows the upper boundary of Hofstadter butterfly.

4通过做一个规范变换和偶极近似，定性地推导了旋转Bose-Hubbard模型，并且通过研究正常态不动点的稳定性推广了旋转Bose-Hubbard模型的零温相图到有限温度的情形；另外根据系统有效的能带宽度与旋转速度的关系(Hofstadter蝴蝶)，得到了系统的临界跃迁矩阵随旋转速度的改变展示谐振行为的结论。

The dissertation is about the identification of its controlled model and its resonant frequency point by the direct use of computer control system of the tracking gimbal from engineering application aspect.

论文从工程应用角度上直接利用跟踪转台的计算机控制系统，辨识其用于计算机控制的二阶模型以及系统的机械谐振频率点。

Graphic analysis and design method of optical resonator［M］.

光学谐振腔的图解分析与设计方法［M］。

Graphic analysis and design method of optical resonators［M］.

光学谐振腔的图解分析与设计方法［M］。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷