backing

习惯用语backing off1.卸[退]下backing up1.回投[冲, 行]have the full backing of1.得到...的充分支持特殊用法acoustic backing1.吸声衬垫aluminium backing1.铝敷层copper backing1.铜垫片, 铜衬底earth backing1.复土, 还土film backing1.防光晕层impregnated cloth backing1.浸渍布基体liner backing1.轴承衬支痤metal backing1.金属背shot backing1.填丸加固, 硬丸衬垫stereotype backing1.铅版间隔纸tape backing1.磁带背面backing of smoke1.【采矿】推回火灾烟雾
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