词汇	to and again
释义	to and again adj.往返前前后后
随便看	static sensing characteristics static sensitinity static-sensitive device static sensitivity static sensitization static sensograph static sensor static separation Static Separation of Duty-SSD static separator static serf-shunt excitation system statics error static service deployment static servo-valve static set static settling static settling tank Static Seven-Metre Antenna statics friction static shake-down theorem static shape control Static Shape Control of Paraboloidal Antenna Static Shape Control of Smart Beam static shape model static shear