双轴晶体 meaning in English

biaxial crystal

New calculation method of the optic axial angle of the biaxial crystal
双轴晶体光轴角计算的新方法
Not only general suitability of this method is independent of gratings model , geometry structure , medium properly and crystal axis orientation ( including uniaxial crystals and biaxial ones ) , but also physical concepts are clear and formula is concise
该方法不仅不受光栅模型、几何结构、介质性质和晶体取向(包括单轴和双轴晶体)的影响而具有普遍适用性，而且其物理概念清晰、公式简洁。
According to this , the phase - matching conditions , effective nonlinear coefficients , acceptances of angle and wavelength for biaxial " crystals have been discussed in detail . thermal lens effect is an important factor which affects the quality of laser beam and the amount of output power
实验上，采用了双轴晶体lbo作为倍频晶体，因此对双轴晶体相位匹配、有效非线性系数的计算、允许角、允许波长给出了较完整的分析。