蚀的

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。

Shi Jing-Ru:嗜eating acidic food or carbonated drinks Aihe people to be careful teeth may have been etching, resulting in the loss of enamel, may be seriously exposed to nerve pulp, a dental root canal treatment, and even pulled out teeth.

嗜吃酸性食物或爱喝碳酸饮料的人，要小心牙齿可能遭到酸蚀，造成珐琅质流失，严重时可能牙髓神经露出来，得接受牙医根管治疗，甚至拔掉牙齿。

The mechanism of vaporization , cavitation and water-hammer of drill fluid occurring on the suction stroke of drill pump is investigated.

对钻井泵吸入过程中钻井液产生汽化、汽蚀与水击现象的机理进行了探讨。

With SEM the sample film face to quarter corrode around had observation.

用SEM对刻蚀前后的试样膜面进行了观测。

Ore bodies consists of Au-bearing quartz vein s and the alteration rocks between them and ore grade depends on number of the quartz vein.

矿床由含金石英脉与其间蚀变岩组成，品位高低决定于含金石英脉的数量。

The device is designed with the principle of wire grid polarizer and subwavelength grating structure, and etched with semiconductor technique.

该器件基于线栅偏振器和亚波长光栅结构原理设计，利用半导体工艺的刻蚀技术制作。

The Zn-AI alloy coat steel wire has higher anti-corrosion properties than the Zn-coat steel wire.

锌铝合金镀层钢丝具有比纯锌镀层钢丝耐蚀能力高的优点。

In addition, the large difference of melting point between rare-earth metal oxide and W matrix produce another problem that machining ability becomes deteriorated.

传统W-ThO，阴极材料在电弧等离子技术中的统治地位尚未动摇，而电极烧蚀和性能不稳定等问题依然存在。

Some results about the re-emission spectrum,the re-emission flux,the albedoand the equivalent temperature at the boundary are given,and the variations ofre-emission spectrum with the incident flux are analyzed.

当入射流强度在(0.12-1.2)×1014Wcm2范围内，发射谱接近平衡谱，但在峰值附近谱形发生畸变。随着入射流强度降低，发射谱偏离平衡谱越来越大。分析表明，这与烧蚀深度和冕区光学厚度变小有关。还给出了在不同入射流强度情况下反照率及边界等效温度随时间变化规律和对吸收流及再发射流脉冲的分析。

The optimal volumetric concentration of the acid is determined by comparison of the effects of one acid with different volumetric concentrations on the solution ration of the fragmental rock;then with analysis of the experimental results of the fragmental rock's breaking rat.

比较不同体积分数单种酸对碎屑岩心溶蚀率，优化最佳酸液体积分数值；在此基础上，研究不同体积分数酸液复配体系对碎屑岩心破碎率实验结果，优选出适合萨零组油层的酸化解堵配方为7%HCl+0.5%HF+5%CH3COOH及12%HCl+0.5%HF+0.5%HBF4+3%CH3COOH体积分数

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。