excess metal短语¹⁴⁴⁹⁷²⁺² 基本例句 多余金属 It is indicated that the protruded hooks, with heavy excess metal, small excess metal and no excess/span> metal, all underwent more than20 N push force, and met the needs of the assembling process. 结果表明：严重多肉、小多肉和无多肉三种铸件卡钩处能承担的最大推力都大于20 N，完全能够满足装配要求； chemyq