查询词典 pumping-back method

half back：前卫

之后这些防守型的球员被正名为"后卫"(Back)或者"前卫"(Half Back). 随着橄榄球运动的愈加复杂,不同站位的后卫球员(指后卫站位和前锋线的距离)被细化为前卫(half back)、中后卫(three quarters back)和最后卫(full back).

at the back of = in the back of：在...后面

lie on one's back 仰卧 | at the back of = in the back of 在...后面 | back to back 背靠背

back to back credit import first：输入为先的对开信用证

back to back L/C 对开 信用证 | back to back credit import first 输入为先的对开信用证 | back Valvation 倒起息

snipers：有狙击手 趴下 - 回来

After me. Let's go.|跟着我 走 | - Snipers! Get down! Snipers! - Back! Back! Back!|- 有狙击手 趴下 - 回来 | Get back! Get back!|回来

back-to-back testing：反馈试验,背靠背试验

back-to-back test ==> 成对试验,整流子片试验 | back-to-back testing ==> 反馈试验,背靠背试验 | back-to-front ratio ==> 反-正比

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

method of average error：均误法

平均差误法(或均误法)(method of average error)又称调整法恒定刺激法(或固定刺激法)(method of constant stimulus)又叫 正误法(true-false method)、次数法(frequency method),它是心理物 理学中最准确、应用最广的方法,可用于测定绝对阈限、差别阈限和等值,

cartogram method,choloplethic method：分区统计图法(又称"等值区域法

04.179 定位统计图表法 positioning diagram method | 04.180 分区统计图法(又称"等值区域法") cartogram method,choloplethic method | 04.181 网格法 grid method

steam trap valve：疏水阀

球阀 ball valve | 疏水阀 steam trap valve | 蛇管式换热器 serpentine type heat exchanger

aldermanship：市政官

aldermanry 议员 | aldermanship 市政官 | Alderney 乳牛