词语零位线
解释naught line;zero line
零位线zero line详细»
零位线zl详细»
零位线naught line;roll parting line;zero line详细»
零位线reference line详细»
零位线reference line;zero line;zl详细»
零位线baseline;basic line;zero line详细»
零位线roll parting line;zero line详细»