查询词典 back-up

back echo：回波

"负效放电","back discharge" | "回波","back echo" | "反萃取","back extraction"

back echo：后瓣回波,后回波

back eccentric wheel 倒行偏心轮 | back echo 后瓣回波,后回波 | back echo reflection 障碍物回波反射

back echo：后波瓣接收的回波信号

交流声,干扰 back drop | 后波瓣接收的回波信号 back echo | 反电(动)势 back electromotive force

back echo：后波瓣接收的回波信号;后辩回波

交流声,干扰,背景 back drop | 后波瓣接收的回波信号;后辩回波 back echo | 出气边,后缘,下降边;[脉冲]后沿 back edge

back echo reflection：障碍物回波反射

back echo 后瓣回波,后回波 | back echo reflection 障碍物回波反射 | back edge 叶片出汽边,后沿,下降边

Back wall echo：底面回波

Back wall 背 | Back wall echo底面回波 | Back wave 反向波

back elevation：后视图

back diffusion 反扩散 | back elevation 后视图 | back fire 回火

back elevation：背立面图

back electromotive force 反电动势 | back elevation 背立面图 | back EMF 反电动势

back facade：背面

back elevation 后视图 | back facade 背面 | back painting 底面涂漆

fall back upon：依靠

fall back on 求助于 | fall back upon 依靠 | fall back 后退

phenol red：酚红,苯酚磺酞

phenol reagent 酚试剂 | phenol red 酚红,苯酚磺酞 | phenol red test 酚红排泌试验

accessory equipment：附件

accessory equipment 辅助设备 | accessory equipment 附件 | accessory part 附件