查询词典 Zn

A novel excellent corrosion resistant of Zn-Cr film coating had been fabricated with fine zinc powder,chromate and acrylic acid etc in this study.

本研究用细金属锌粉、铬酐、丙烯酸等原材料，制备了耐蚀性优异的锌铬涂层。

Organic matter, pH, cation exchange capacity and contents of potassium, sodium, magnesium, copper, zinc, manganese, cobalt, iron, selenium, iodin and fluorin were determined of rock and soil samples from six main geological background areas within the main ruminant production base, in Yunnan Province, China. Results showed: 1 the red earth area of Paleozoic basalt and red earth area of carbonate the highest; the yellow-red earth area of mixture of carbonate, clasolite and basalt follows, except for its content of Co, which is relatively lower; and the purple earth area of Mesozoic clasolite, the yellow-red earth area of clasolite and the dark red earth area of Precambrian metamorphite are the lowest

对云南省反刍动物生产基地所属的6个主要地质背景区的土壤和岩石样品的K、Na、Mg、Cu、Zn、Mn、Co、Fe、Se、I和F元素及土壤的有机质、阳离子交换量和pH进行测定分析，结果表明：晚古生代玄武岩红壤区和碳酸岩盐红壤区土壤各种矿质元素都比较高，有机质含量与CEC都较高，特别是Ⅴ区最为显著；碳酸岩盐、碎屑岩和玄武岩混合型黄红壤区除了Co含量较低外，其他元素含量都居中等或偏上水平，有机质含量与CEC仅次于第1类背景区；碎屑岩紫色土区、变质岩赤红壤区和碎屑岩黄红壤区大多数矿质养分相对都比较低，有机质含量与CEC最低。

Nanostructured ZnO films with grain size of 28～35 nm have been prepared on quartz glass substrates by pulse laser ablation of Zn target in oxygen atmosphere. The structural and optical properties of the films were studied. ZnO thin films with typical c-axis (002) orientation were successfully deposited at a range of 100～250 ℃. The results obtained by X-ray diffraction and photoluminescence measurements show that the strong UV emission centering is about 378～385 nm and deep-level emission centering about 518～558 nm in the room temperature PL spectra of the ZnO films.

利用脉冲激光沉积法在氧气氛中烧蚀锌靶制备了纳米晶氧化锌薄膜，衬底为石英玻璃，晶粒尺寸约为28～35 nm.X射线衍射结果和光致发光光谱的测量表明，当衬底温度在100～250 ℃范围内时，所获得的ZnO薄膜具有c轴的择优取向，所有样品的强紫外发射中心均在378～385 nm范围内，深能级发射中心约518～558 nm，衬底温度为200 ℃时，得到了单一的紫外光发射。

To analyze the main causes affecting torsion property of galvanized steel wire for bridge cable from such aspects as surface quality,distribution state of inner stress,microstructure,galvanizing temperature and Zn-Fe alloy coat.

从钢丝的表面质量、内部应力分布状态、组织结构、镀锌温度及锌-铁合金层等方面分析影响大桥缆索用镀锌钢丝扭转性能的主要原因，并提出相应措施。

It was shown by the experiments that the radius of the Zn rod is new factor which affects the thickness of the diffusion-solution zone.

实验表明，除扩散温度和时间对扩散层有影响外，扩散偶的几何尺寸对扩散层的形成也有影响。

Adding some rare-earth metal to the positive material of alkaline Zn-MnO2 batteries was studied.

通过将不同含量的3种稀土金属添加到正极活性物质中，探讨其对碱性锌锰电池性能的影响。

Effects of catalysts,reaction temperature and reaction time on the formation of PPDC were investigated.

实验考察了催化剂对反应的影响，并以Zn(CH3COO)2作催化剂确定了合适工艺条件。

The influence of different kinds of Zn salts, P sources, and pH of the reaction mixture on the formation of the products was investigated.

实验考察了不同的锌盐、磷酸盐，以及不同pH值对产物的影响。

The M-H behavior has displayed a ferromagnetic hysteresis loop with a wasp-waisted shape, which constricted in the middle section, while wider at above and below section.Further, various amount (1, 3, 5%)of NdFeB were mixed with Ni-Zn ferrites. The M-H behavior has shown markedly different coercivity and wasp-waisted hystsresis.

为了进行本研究，在样品制备上系以燃烧合成法制备奈米级镍锌铁氧体软磁磁粉，并与市售微米级铷铁硼硬磁磁粉加以均匀混合，最后压制成软硬磁复合之块材，并经由震荡样品磁性量测仪对软磁、硬磁与复合磁材加以量测以描绘出其磁滞曲线。

The highest biomass and Zn content of the strain was obtained 30h at 28℃ and 220r/min, when 40mL of the culture in 250-mL shake flasks was grown in wert co...

在优化的条件下，杂交菌株ZGH 374的生物量达到 14 。3g L ，细胞锌含量可达到 9.3mg g ，锌总含量达到了 133mg L。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。