dumpy level定鏡水準儀學術名詞定鏡水準儀:造船工程、測量學、土木工程、海洋地質學瞄準筒:造船工程、機械工程定鏡水平儀:機械工程定鏡水準化:地質學英文釋義a surveyor's level having a short telescope fixed to a horizontally rotating table and a spirit level