单词	人口倍时
释义	人口倍时population doubling time
随便看	variable threshold logic circuit--vtl variable threshold logic circuit，vtl variable threshold voltage cmos variable thrust engine variable thrust rocket engine variable time fuse variable time fuse{=vt fuse} variable time fuze variable time scale variable time-setting relay variable time 变时引信 variable torque motor variable trace variable transformation variable transformer variable traverse motion variable type variable-type ripper variable value variable value control variable-value control variable valve actuation mechanism variable valve control variable valve lift variable valve timing