先前: before; previously的: 4次方是 The fourth power of 2 i ...零件: part; element; detail; compo ...面: face零件面: component side; part surface先前的: antecedent; anterior; foregoing; foregone; late; preceding; previous / prior / former; prior在前的，先前的: preceding过去,先前的: foregone先前,在前的: previous先前的，过早的: previous a. happening, coming or being earlier in time or order先前的，上述的: preceding先前的，先行的: antecedent先前的利润: previous profit先前的统计: a conservative estimate先前的债项: antecedent debt有先前的: prev: previous多余的零件: odd parts购置的零件: purchased parts家具的零件: other furniture parts磨损的零件: worn-out parts排空的零件: emptying fittings细小的零件: small parts垂直于零件面: normal to part; normal to ps平行于零件面: parallel to ps相对于零件面: relative to part
