词汇	张庆恩
释义	张庆恩 Chang Ch'ing-an 1902-
随便看	suction conduit suction cone suction connecting tube suction connection Suction contamination suction control suction-controling suction control technique suction control techniques suction conveyer suction conveyor suction couch suction couch roll Suction couch with cantilever arm Suction couch with cellular gratings Suction couch with cellular perforations suction couch with open chamber suction counter flushing suction couple suction coupling suction cover suction crucible suction cruet suction crutch suction culvert