防锈脂
Apply grease to the engaging sections on the upper surfaces of the connecting sections of the lower structure with the crawler frames, and the connecting pin holes to prevent rust occurrence.
在与履带相连的底部结构和联结销孔的结合部位的上表面涂以油脂,以防锈蚀。
Steel parts are usually covered with grease for fear that they should rust.
钢制零件通常涂上润滑脂,以防生锈.
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