触点痕。由于供焊接电流的电极与管子表面间的电接触，致使在焊缝线附近产生不连续痕迹。
Contact mark. Intermittent marks adjacent to the weld line resulting from the electrical contact between the electrodes supplying the welding current and the pipe surface.
用于表面消毒、材料消毒、设备消毒和家具消毒的产品，且该产品不直接与食品或饲料接触。
Products used for the disinfection of surfaces, materials, equipment and furniture which are not used for direct contact with food or feeding stuffs.
适用于保护中等腐蚀程度环境中，不接触阳光的钢结构内、外表面，尤其适合集装箱底部防腐之用途。
For protection of exterior and interior surfaces of steel not exposed to direct sunlight in moderately corrosive environment. Especially for anticorrosion of the bottom of containers.
本文介绍了用局部不接触法修复轧机支承辊表面裂纹的方法。
This article recommends a local noncontact method to remedy the surface crack on the backup roll of the hot rolling mill.
前者是几个不连续的小幅值电流脉冲，主要是使表面接触均匀化，接触电阻稳定在一个较小值；
The former consists of several discontinuous minor amplitude current impulses, which is used to uniformize contact area and to make contact resistance stabilized on a small value;
前者是几个不连续的小幅值电流脉冲，主要是使表面接触均匀化，接触电阻稳定在一个较小值；
The former consists of several discontinuous minor amplitude current impulses, which is used to uniformize contact area and to make contact resistance stabilized on a small value;
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