半自动转速计 aided tachometer
半自动转数表 aided tachometer
半自动转塔车床 semi-automatic turret lathe ; automatic turret lathe
半地转运动 [气象] semi-geostrophic motion
半转体动作 twist the body around
转动半径 Turn Radius ; radius of gyration ; Swivel Radius ; Radius of Gyration/mm
转动圆半径 r
沿半径转动的 radial
半自动信息转接中心 semi-automatic message switching center
天空中一半的恒星，都是双星，看光谱的时候，你们会发现，它们绕着彼此转动。
Half of all the stars in the sky are binaries, and so when you look at the spectra, you will see them go around each other.
西班牙的混凝土搅拌机疯狂转动：2006年一年间75万间住宅拔地而起，这是美国同期数目的一半，而美国人口是西班牙的七倍。
And Spain's cement mixers were on fire: three-quarters of a million homes were built in 2006, half the number in America, whose population is seven times larger.
这台机器转动比那台机器快半倍。
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