查询词典 crystalline grain

Crystalline and amorphous nano-Al_2O_3 powder were synthesized by room-temperature hydrolysis method and direct oxidic method respectively, and nano-SnO_2 powder was produced by sol-gel technology. Their microstructure features and growth behavior of crystal grain were studied in detail, and corresponding model and theory were put forward to explain them.

采用室温水解法和直接氧化法分别获得了晶态和非晶态纳米Al_2O_3粉，采用溶胶-凝胶法制备了纳米SnO_2微粉，研究了它们的微结构特征与晶粒生长行为，并提出了相应的模型与理论去解释。

Reflecting layer is composed of TiO2 large nano-particles with mean grain size of 250nm or 150nm prepared using organic alkali tetramethylammonium hydroxide as peptizer. Nano-crystalline TiO2 porous thin film composed of small nanocrystalline (10~20nm) was used as a substrate layer to absorb large amount of dye molecules.

用有机碱四甲基氢氧化铵做胶化剂制备的两种大粒径纳晶TiO2（粒径为250nm和150nm），用它们分别制备薄膜做为反射层；用小粒径纳晶TiO2(10~20nm)来制备的纳晶多孔薄膜为底层膜，用于吸收大量的染料。

To improve the quality of Ta Spinnerets with high hardness and alkali-proof corrosion,HFCVD is used to deposit crystalline diamond films with different sizes of grain on carbonized Ta spinneret s.

为改善钽喷丝头的品质，提高其硬度和耐碱腐蚀能力，利用热丝CVD制备不同粒径的金刚石薄膜，并通过对钽衬底的碳化处理，成功使之沉积于纯钽喷丝头表面，对纯钽喷丝头进行表面强化。

To improve the quality of Ta Spinnerets with high hardness and alkali-proof corrosion, HFCVD is used to deposit crystalline diamond films with different sizes of grain on carbonized Ta spinnerets.

为改善钽喷丝头的品质，提高其硬度和耐碱腐蚀能力，利用热丝CVD制备不同粒径的金刚石薄膜，并通过对钽衬底的碳化处理，成功使之沉积于纯钽喷丝头表面，对纯钽喷丝头进行表面强化。

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。