查询词典 trace back

back-to-back testing：背靠背试验

反向起动 back-to-back starting | 背靠背试验 back-to-back testing | 正反比 back-to-front ratio

back-to-back counter：加倍计数器

back-step welding 逐步退焊 | back-to-back counter 加倍计数器 | back-to-back credit export first 输出方先开的对开信用证

back-to-back angle：双角摇杆背贴角钢

back-step 逐步退焊 | back-to-back angle 双角摇杆背贴角钢 | back-to-back coupling 背面耦合

badly adv. very much; to a great extent：严重到;非常地

trace back to / date back to 追溯到 | badly adv. very much; to a great extent 严重到;非常地 | a barred window 带栅栏的窗

trace back to/date back to：追溯到..., 从...开始

too far away太遥远 | trace back to/date back to 追溯到..., 从...开始 | train to be 培养成

date back to/trace back to：追溯到

crime 犯罪 | date back to/trace back to 追溯到 | decline 下降,减少

at the back of one's mind：在记忆的深处, 下意识地

(as) bare as the back of one's hand 一无所有; 一贫如洗 | at the back of one's mind 在记忆的深处, 下意识地 | at sb.'s back (=at the back of sb.) 跟随某人; 支持某人

back end plate：后端板

后柱(主机) back-column or back housing | 后端板 back end plate | 逆火,回火 back fire

back page：最后部分的

back-order 订 | back-page 最后部分的 | back-to-back 紧接的

back to back credit：对开信贷

backdoor listing "借壳"上市;"买壳"上市 | back-to-back credit 对开信贷 | back-to-back loan 对销贷款

circular section segment：圆形剖面

circular seam welding 环缝对接焊 | circular section segment 圆形剖面 | circular section 圆弧标度尺

hot air engine：热风气动力机

热风干燥机 hot air drying machine | 热风气动力机 hot air engine | 热风扇 hot air fan