The coupling efficiency of laser with semiconductor power amplification, output power of laser with semiconductor power amplification and operating lifetime have been improved.

提高了半导体功率放大激光器的光耦合效率以及输出的光功率。

youdao

This would be a one in a lifetime finding in the operating room.

这样的发现是在手术室里一辈子才碰得上一次的。

youdao

A baby who was born with a foot in his brain has been declared fit and healthy three months after shocking doctors with the "once in a lifetime finding in the operating room".

三个月前，一名大脑中“藏”着一只脚的婴儿让医生们倍感震惊，因为“这样的发现是他们在手术室里一辈子才碰得上一次的”。

youdao

This would be well within the operating lifetime of any nuclear plants, even if we took the decision to start building them today.

ECONOMIST: Letters | The