晶粒

We observed the changes in the orientation, grain size and roughness of the bismuth films as a function of the substrate temperature.

我们发现薄膜的方向、晶粒的大小、表面粗糙度都会随基板温度而改变。

Quantum dots are semiconductor nanocrystals with physical dimensions smaller than the exciton Bohr radius.

量子点是指半径小于或接近于激子玻尔半径的半导体纳米晶粒。

Moreover, if the bond length or angle of the growing crystallite bonding with the arriving radical is distored, the crystallite growth of this direction is also stoped.

当一个生长着的晶粒遇到邻近的簇团，将形成变形的键，这样品粒在此方向生长停止。

AlN polycrystalline boules with a diameter of 40~50mm, a thickness of 8~10mm, and a grain size of up to 5mm have been grown with physical vapor transport technology.

利用物理气相传输法生长了直径40~50mm、厚约8~10mm的AlN多晶锭，最大晶粒尺寸为5mm。

When AgNO_3 concentration was higher than 0.03 M, the prepared samples consisted of anatase, brookite, rutile and metal silver nanocrystal particles, and their grain size ranges were 5-30 nm.

当AgNO_3浓度高于0.03 M时，Ag-TiO_2复合薄膜由锐钛矿、金红石、钣钛矿、金属银颗粒组成，它们的晶粒尺寸范围在5-30 nm。

1The nanocrystalline TiO2 film is prepared by sol-gel and appearance of the film is observed by SEM. The X-ray graph shows the film has lots of anatase and a few rutile TiO2, but does not have brookite TiO2. The average diameter of particle is 25nm according to Scherrer formula.

采用溶胶-凝胶法制备了纳米晶二氧化钛薄膜，通过扫描电镜观察了其形貌，X射线衍射表征显示出制备的薄膜具有大量的锐钛矿晶型和少量的金红石晶型，不含有板钛矿晶型，根据Scherrer公式计算出薄膜的晶粒的平均尺寸为25nm。

The results showed that the carbon can rapidly reduce the WO3 to W and directly carbonize it at 860℃~1 060℃, leading to a sintering reaction with the temperature increasing.

含碳量低时，块体中有杂相W 或W2C，含碳量合适时，块体的物相为纯WC，致密度达到WC 的理论密度，晶粒在500 nm 左右。

The relationship between the Q value of ultrasonic resonant cavity and attenuation coefficient is educed for the first time,which supplies theoretic support to get the coefficient accurately by interferometry,and a practical method is introduced.

通过测量介质的声学特征量得到介质的某些理化常数的技术称为声探测技术。如测量液体的密度、浓度、粘度、流量、液位以及固体的致密度、晶粒度或球化率、弹性、硬度、厚度

A little of RE can refine the grain size of the austenite, decrease the laminae pearlite cementite.

少量的固溶稀土可以细化BNbRE重轨钢的奥氏体晶粒和珠光体片层结构。

It was the firm combination between them and the reduction of the average size of particles that made the produced cermet strengthen and toughen.

它们之间较牢固的结合以及晶粒平均尺寸的减小，是材料得以增强增韧的原因。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。