词汇	dust loss
释义	dust loss 粉尘损失
随便看	concave line label concave location concavely concavely upward-facing tile roof concave mapping concave maximum principle concave meniscus concave milling cutter concave milling cutter for wood working concave minimization concavemirror concave mirror concave-mirror optical resonator concave mirror reflector Concave mold concave mold structure concave motion rule concave mould concave mounting bolt concave nails concaveness concavenesses concave nirror Concave obstacle Concave on both surfaces