differential levelingdifferential levelling差别: difference; disparity; dissi ...水准测量: differential levelling; leve ...面水准测量: area leveling; area levelling; grid levelling双水准测量: double leveling水准测量: differential levelling; levelling; grading◇水准测量队 levelling party下载手机词典可随时随地查词查翻译