backlitadj.背光的动词backlight的过去式和过去分词形式.backn.后面；背脊；靠背；后背；后卫vt.支持；后退adv.向后地adj.向后的；后面的；偏远的；过时的；积欠的back porch sample pulse后肩取样脉冲back affiliated systems后配套Backhau's towel forcepsn.自动接纸装置back-channel behavior后通道行为back-fire check valve逆火止回阀Back - like High Jumpn.汽车用收音机backpressure regulation吸入压力调节, 吸入压力调节器back-to-back escrow背对背契据Back again already?自动载物片细胞沉积机back scattered electron反向散射电子