单词	initial depth
释义	initial depth 原有水深
随便看	background radiation background radiation intensity background radiation level background radiation noise background radiations background radioactivity background random process background ratio background reaction background reader background reading background reflectance background reflection background region background register background rejection Background Repagination background research background response background return background returns background roller backgrounds back-grounds background scattering 452342545 452342554 452343111 452343121 452343125 452343134 452343134 452343154 452343211 452343212 tune-up tungsten Tungus tunic tunic coat tuning tunnel turban turbine turbo