headway per drill bit
经 (每一)钻头进尺… Read the rest
经 (每一)钻头进尺… Read the rest
化 油槽车穹顶… Read the rest
计 先行进位发生器… Read the rest
化 钩头斜键… Read the rest
n. 逆风, … Read the rest
电 电缆头… Read the rest
计 表头… Read the rest
计 组合式读/写磁头… Read the rest
*[‘pænhed]
n. … Read the rest
计 先行进位输出… Read the rest