A.P.I. baum'e gravity A.P.I.波美比重单位...gravity n.地心引力,重力重力重力...zero-gravity 失重[状态]...absolute gravity 绝对比重...zero gravity 零重量,无重量,失重...absolute specific gravity 绝对比重...zero-gravity switch 零引力开关...apparent gravity 表观比重,外表比重...gravity-mid per cent curve 比重-蒸出50%曲线...acceleration of gravity 重力加速度...gravity-feed tank 重力自流进料罐...gravity tank 自流贮罐...gravity ventilation 重力通风...viscosity-gravity constant 粘度比重常数...bulk specific gravity 成堆比重...gravity settling basin 重力沉降池...gravity-temperature correction graph 比重-温度校正线图...gravity olling 重力注油...gravity settling 重力沉降...gravity-feed line 重力自流进料管...law of gravity 万有引力定律...
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