查询词典 zinc

In the function of sodium methoxide, several factors effecting on alcoholysis of urea by zinc oxide catalyst were obtained.

探讨了在甲醇钠作用下，氧化锌催化尿素醇解的影响因素。

Its zinc complex was applied in asymmetric direct aldol reaction of acetone and p-nitrobenzal...

设计合成了一种NOBIN衍生的手性配体，初步研究了该手性配体的双核锌配合物在对硝基苯甲醛和丙酮的不对称直接醇醛缩合反应中的催化应用，20℃和20mol％催化剂量下，获得了32.5％ee和72％收率的产物。

and brand Alkaline Zinc-Manganese Button Cell will fully meet your requirements with best quality, most competitive price and best service.

、、牌碱性锌锰扣式电池将以最好的质量、最合理的价格、最满意的服务来获得您的青睐，愿成为您长期的供应商。

Compared with the sharp slope voltage curve of alkaline manganese cell, zinc-air cell had a flat plateau at 1.23 V.

由于该种电极的研制成功，使困扰圆柱型锌-空气电池实用化的防漏问题得到解决。

The paper describes the application of titanium in electrode materials of nickel-hydrogen battery ,Li-ion battery ,solar battery ,alkaline zinc-manganese dioxide cell,lead-acid battery ,exploration and exploitation of oil and gas,geothermal energy,electric power industry and so on.

介绍了钛在镍氢电池负极材料、锂离子电池正负极材料、太阳能电池、碱性锌锰电池、铅酸蓄电池以及油气勘探开发、电力工业和地热开发中的应用。

Alkalescence a flux, such as alkali metals and alkaline-earth metal, zinc oxide and most stain oxide or chromophores components are gender neutral, the principal is alumian oxide, sometimes hemaite and electrolyic, and so on are also included in this composition; acidic components of oxide for silica, phosphoric acid, zirconia, etc.

碱性成分为熔剂，如碱金属、碱土金属、氧化锌及多数的着色氧化物或发色基团；中性成分为两性氧化物，主体为氧化铝，有时将氧化铁和氧化锰等也列入此成分中；酸性成分中有代表性的氧化物为氧化硅、磷酸、氧化锆等

However, as the development of the times, ordinary alkaline zinc-manganese batteries can not meet the needs of the market.

然而，随着时代的发展，普通碱性锌锰电池不能满足市场的需求。

Keep the hand face plate 3# zinc in Australia alligation material manufacture, combining many special lamellas plating craft, the color and luster endure, the feeling of hand is delicate, bearing to decay the function good, the salt fog experiment time marks 24 hours of request far above the country far, again through the 4 Hs of hardness above varnish seal, roast to paint the temperature to amount to 150 ℃sThe surface is smooth, raising the antisepsis consumedly, defending the scoring, scuffing ability.

执手面板采用澳洲3#锌合金材料制作，结合特殊的多层电镀工艺，色泽持久、手感细腻，耐腐蚀性能优良，盐雾实验时间远远超过国标要求的24小时，再经硬度4H以上的清漆封闭，烤漆温度达150℃；表面光滑，大大提高了防腐，防划伤能力。

In this paper, the effects of rare earth on the structure and properties of zinc-base alloy are studied.

研究了稀土对锌基合金的组织、性能的影响。

Company has strong technical strength, can take a variety of zinc alloy product development and production.

公司技术力量雄厚，可承接各种锌合金产品的开发和生产。

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。