一次下井 meaning in English
in one trip
on one trip
Examples
- The double isotope release unit applying piston - like igniter and efficient control electric circuit can release " the tiny ball " and isotope at one pass trip , and enhances testing efficiency
应用活塞式点火头装置以及有效的控制电路设计的双同位素释放器，一次下井就可以完成“冷球”和同位素的释放，提高了测试效率。