单词	楔石
释义	楔石 xiēshíkeystone
随便看	direct compensation measurement direct competition direct component direct compression direct compression tablets direct computer control direct computer control，dcc direct computing method direct conductance measurement direct conductivity direct conductor cooling direct connect direct-connected controller direct-connected exciter direct connected meter direct-connected motor direct-connected turbogenerator direct connection direct connection system direct-connect modem direct contact direct contact brake direct contact condenser direct contact desulfurization direct contact distillation process