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Based on the electron gun of SDS-3 electron beam lithography machine,the concave hyperboloid Wehnelt(oxide-coated cover)of accelerator is discussed.

以SDS-3电子束设备的电子枪为基础，讨论了双曲凹面加速器维纳尔的电子轨迹与能量分布。

Some nickel coated copper powders were prepared by electroless plating with hypophosphite and hydrazine as reducing agents respectively.

1前言金属镍粉、铜粉是冶金、机械、化工、电子等行业中应用较广的一类材料[1~3]。

A crippling ice storm has coated much of the Midwest, leaving road to mess and power lines down.

一场严重的暴风雪袭击了大部分的中西部地区，道路狼籍一片，电线也遭到毁坏。

The business scope covers colored PCM aluminum plate middle-high grade colored coated aluminum plate checkered aluminum plate hairline finished aluminum plate mirror aluminum plate and flat aluminum plate for advertisement and decoration colored PCM plate VCM film faced plate word board solar panel stainless steel and aluminum-zinc plate for refrigerator and ice-box etc.

主营家电用PCM彩涂铝板、中高档广告，装饰用彩涂铝板、花纹铝板、拉丝铝板、镜面铝板、平铝板；冰箱冷柜等家电用PCM彩涂板、VCM覆膜板、写字板、太阳能板、不锈钢，家电用镀铝锌板，拥有进口高精度数控裁剪设备及专业技术人员，现已给海尔，海信、澳柯玛及出口冰箱，冷柜厂家稳定批量供货。

The heated Lucite Hull Cell which accommodates standard cathodes and anodes, is constructed on a special base accommodating a teflon coated stainless steel immersion heater (100 watt, 115/220 volts AC) and thermostatic control.

激烈的有机玻璃细胞船体可容纳标准阴极和阳极，构造一个特殊基地容纳了聚四氟乙烯涂层不锈钢沉浸式加热器(100瓦特，220分之115伏特AC)和恒温控制。

Along with a 1.5kW washing-machine immersion heater to heat the mixture (get a heater that's coated with stainless steel).

用1.5kW加热器加热，加热器外包不锈钢。

The solid immersion lens for near field optical storage has one negative refraction medium layer coated to the lower surface of traditional solid immersion lens to re-focus laser beam focused onto the lower surface of the solid immersion lens onto the surface of CD.

本发明公开了一种用于近场光存储的固体浸没透镜，在传统固体浸没透镜的下表面涂覆上一负折射介质层，该负折射介质层将聚焦于固体浸没透镜下表面的激光重新聚焦于碟片的表面。

Titanium ions were implanted into quartz and quartz coated with Ti film by MEVVA ion source implanter. The dose was 3×10^16 ions/cm^2 and 5×10^16 ions/cm^2. The ion energy and depth distribution were analyzed using simulation method.

为提高石英玻璃表面金属化膜层与基底的结合强度，利用金属蒸发真空弧离子源引出的Ti离子对石英玻璃及镀Ti膜石英玻璃进行离子注入，剂量选择3×l0^16 ions/平方公方，5×10^16 ion/平方公分，模拟分析了注入离子能量的分布。

This paper presents the regular pattern of protection effect of concrete coated with different type and different concentration of silicane impregnant.

本文针对具体工程，系统进行不同品种硅烷浸渍剂、不同硅烷浓度对混凝土保护性能的影响规律。

Closer to ground zero, half an engine block – suspected of coming from the truck that carried the bomb – lay incongruously on the ground alongside pieces of flesh. By then a slick of thick engine oil had coated the road, making rescue bids even more hazardous for those who dared.

往爆炸废墟再走近一点，满是碎肉的地上不协调地摆着半个发动机组（怀疑是来自携带炸弹的卡车），此时的路面被一层黏稠的机油所覆盖，这使得救援行动更加危险。

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。