查询词典 keep back

back and forth method：选择法、尝试法

back action反作用 | back and forth method选择法、尝试法 | back forth motion往复运动

back and forth method：往返法

反安匝数 back ampere turns | 往返法 back and forth method | 回弧 back arc

back bond：反担保,反向键,退回证券

back bolting 顶板杆柱支护 | back bond 反担保,反向键,退回证券 | back brace 后撑

Outside Back Cover：封底

封三/Inside Back Cover 92,000 | 封底折页/Back Cover Gatefold 220,000 | 封底/Outside Back Cover 180,000

Back Cover Gatefold：封底折页

封三/Inside Back Cover 92,000 | 封底折页/Back Cover Gatefold 220,000 | 封底/Outside Back Cover 180,000

back door selling：黑市销售

"反向演译","back annotation" | "黑市销售","back door selling" | "积欠订单","back order"

back door interference：后门干扰(与电力线同方向进入天线电路之干扰噪声)

back discharge | 反向放电 | back door interference | 后门干扰(与电力线同方向进入天线电路之干扰噪声) | back door | 后门, 秘密途径

back door interference：后门干扰

back door 非法途径 | back door interference 后门干扰 | back draft 反拔模斜度,反拨模斜度,反斜度

back down off：放弃,让步,退却

back away 逐渐后退 | back down off 放弃,让步,退却 | back of 在...的后面;在...背后

back down：放弃,让步,退却

back and forth来回,往返,来来往往地 | back down放弃,让步,退却 | back off后退,让步

the bird of wonder：凤凰;长生鸟

the bird of peace鸽子 | the bird of prey 猛禽 | the bird of wonder凤凰;长生鸟

flange rail：平底轨条

"凸缘皮带轮","flange pulley" | "平底轨条","flange rail" | "凸缘肋","flange rib"