避免储存在有盐或其它腐蚀性材料的地方。不使用时，阀门保护帽和阀门排气口密封应保持在钢瓶上。
Avoid areas where salt or other corrosive materials are present. Valve protection caps and valve outlet seals should remain on cylinders not connected for use.
防锈油：涂在金属表面，形成保护层，防止金属生锈或腐蚀的油或者油脂类材料。
SLUSHING OIL : Oil or grease-like material used on metals to form a protective coating against rust, corrosion, etc.
把电阻线绕在无硷性耐热陶瓷件上，外面加上耐热、耐湿及耐腐蚀之材料保护固定而成。
Wire wound resistors are made by winding the resistance wire on the alkali less ceramic core, then coated with noncorrosice, heat-proof and humidty proof material.
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