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step-by-step topics：分步指导的主题

step-by-step procedures 详细步骤说明 | step-by-step topics 分步指导的主题 | stock 常用

watch/mind one's step：当心、小心(走路时)

step into a boat/across a stream 踏入小船;踏进小溪 | watch/mind one's step 当心、小心(走路时) | step by step 逐步地;渐渐地

step feed drill attachment：分级进给钻削附件

step feed 分级进给 | step feed drill attachment 分级进给钻削附件 | step-by-step feed 逐步进给

step rate：步进梁

分步开挖:digging step by step | 步进梁:step rate | 阶梯制:step system

step-by-step procedure：逐步过程

逐步法 step-by-step method | 逐步过程 step-by-step procedure | 按步连续 stepwise continuous

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

back step method：逐步退焊法

back steam 回汽 | back step method 逐步退焊法 | back step sequence 后退焊接顺序

back step method：[后]退焊法

后支撑,后拉索 back stay | [后]退焊法 back step method | [后]退焊顺序 back step sequence

back step method：退焊法;后退熔焊法

背材 back piece | 退焊法;后退熔焊法 back step method | 退焊顺序;后退熔焊顺序 back step sequence

operator precedence parser：算符优先分析程序

operator precedence method 算符优先法 | operator precedence parser 算符优先分析程序 | operator precedence system 算符优先方式

drive up the wall：使...大怒

8. compatible 能共处的; 可并立的 | 9. drive up the wall 使...大怒 | 10. nit-pick 挑剔;吹毛求疵