晶体

The electron displacement polarizabilities in the hexagonal boron nitride crystal are evaluated by the new model. The results are compared with those from the classical models to point out the applied scope of the new model.

根据该模型计算了六方氮化硼晶体的电子位移极化率，并与经典模型的计算结果进行了比较，进一步分析了所提出模型的适用范围。

The results show that the synthesis temperature is the main factor that affects the content of boron in the synthesized diamond.

实验结果表明，合成温度是影响晶体中硼含量的主要因素。

The crystal boule which is 22 mm in diameter and 45 mm in length was presented.

生长的晶体毛坯尺寸为φ22 mm×45 mm。

The bottom of the crystal boule shows the best quality.

晶体下部的质量最好。

The quality, optical transmissivity and homogeneity of the sapphire boule have remarkably improved.

经测试，Al2O3晶体的完整性、光学透过率和光学均匀性均有显著提高。

A boule with dimension of φlSmm × 40mm was grown successfully by using the Czochralski method.

本文用提拉法成功地生长出尺寸为φ15mm×40mm的LPS：Ce晶体。

The structure of the growth solid-liquid boundary layer is similar to that of BGO crystal.

并首次报道了BGO晶体固／液边界层的厚度约为50μm。

Bounding surface separation has been selected as the most suitable method for middlings processing, by means of study on crystal structure, physical properties, chemical properties, existing state and disintegration degree of the middlings constituents.

通过对中煤各组成成分的晶体结构、物理性质、化学性质、赋存状态、解离程度等性质的研究，确定了界面分选为适合于中煤洗选深加工的主要方法。

The crystals behave like glass prisms, splitting the light into a bow with the colours of the spectrum, often brighter than a rainbow.

那些晶体就像玻璃棱镜，将光分裂为带有色谱的弓形，常常比彩虹更亮。

Birefractive index and Bragg diffraction have been oboserved and measured in the crystals.

测量和研究了晶体的双折射率和布喇格衍射。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。