锌

Stems shall be of dezincification-resistant silicon bronze ASTM B 371 or low-zinc alloy B 99, non-asbestos packing and malleable or ductile iron handwheel. Where higher

阀杆材质是符合美国材料试验协会ASTM B 371标准抗失锌现象的硅青铜，或B 99低锌合金，不含石棉的填料，和可锻或球墨铸铁手轮。

Stems shall be of dezincificationresistant silicon bronze ASTM B 371 or low-zinc alloy B 99, non-asbestos packing, TFE seat disc and malleable or ductile iron handwheel

阀杆材质是符合美国材料试验协会ASTM B371标准的抗失锌现象的硅青铜或B 99标准的低锌合金，不含石棉的填料，聚四氟乙烯阀座阀瓣，可锻或球墨铸铁手轮。

"Stems shall be of de zinc ification-resistant silicon bronze aSTM B 371 or low- zinc alloy B 99, non-asbestos packing and malleable or ductile iron handwheel."

阀杆材质是符合美国材料试验协会aSTM B371标准抗失锌现象的硅青铜，或B99低锌合金，不含石棉的填料，和可锻或球墨铸铁手轮。

Stems shall be of dezincification-resistant silicon bronze ASTM B 371 or low-zinc alloy B 99, nonasbestos packing and malleable or ductile iron handwheel.

阀杆材质是符合美国材料试验协会ASTM B371标准的抗失锌现象的硅青铜或B 99标准的低锌合金，不含石棉的填料，可锻或球墨铸铁手轮。

"Stems shall be of dezincification-resistant silicon bronze aSTM B 371 or low-zinc alloy B 99, non-asbestos packing and malleable or ductile iron handwheel."

阀杆材质是符合美国材料试验协会aSTM B371标准抗失锌现象的硅青铜，或B99低锌合金，不含石棉的填料，和可锻或球墨铸铁手轮。

In comprehensive concerning of all above,it is suggested that theincrease of zinc content in shoot apex may involved in IAA synthesis in thispart,which is more likely to be an orignal signal that plays a critical role inthe regulation of root ferric reductase activity of iron-deficientdicotyledonous plants.

综上所述，缺铁胁迫条件下，根系铁含量的降低导致根系锌含量的积累，从而使茎尖的锌含量增加并有可能促进地上部IAA的增加。在双子叶植物中，IAA可能是调节缺铁根系〓还原酶活性的初始信号物质。

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。

The effects of metal ions on ethanol tolerance of self-flocculating yeast was studied by using a defined medium in shake flask culture. The observed improvement of zinc ion supplementation on ethanol tolerance promoted the further examination of zinc ion effect on continuous ethanol fermentation. Zinc sulfate was supplemented into the fermentation medium at the concentrations of 0.01, 0.05 and 0.1gL^(-1), respectively.

研究了6种金属离子在合成培养基中对摇瓶培养的自絮凝酵母乙醇耐性的影响，发现锌离子对高浓度乙醇冲击下的酵母细胞活性有保护作用，并进一步研究了乙醇连续发酵过程中锌的添加对自絮凝酵母乙醇耐性的影响。

Guangdong Hanjiang River Plate Co., Ltd. was established in 1995, is specialized in producing hot-dip galvanized steel sheet and color coated steel plate economies of scale enterprises, but also in China and Southeast Asia galvanized sheet production thinnest specifications of the manufacturers.

广东韩江钢板有限公司成立于1995年，是专业生产热浸镀锌钢板和彩色涂层钢板的规模经济企业，也是目前我国及东南亚地区生产最薄规格镀锌板的厂家。

Zinc Phosphate will render coating materials excellent rust-preventing performance and good resistance to water.

磷酸锌在三价铁离子具有很强的缩合能力，这种磷酸锌的根离子与铁阳极反应，可形成以磷酸铁为主体的坚固的保护膜，这种致密的纯化膜不溶于水、硬度高，附着力优异呈现出卓越的防锈性能，由于磷酸锌基因具有很好活性，能与很多金属离子作用生成络合物，因此，具有良好的防锈效果。

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。