... L grader L 分级器 LaB cathode 六硼化镧阴极 label 标号 ...
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lab 6 cathode lab阴极
lab 6 thermionic cathode lab热阴极
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A kind of simulating set was put forth to measure the cathode protection potential and its distribution of offshore steel structures in lab.
研究设计了试验室测量海水中金属结构物阴极保护电位及其分布的模拟装置。
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