A new tube called cavity magnetron enabled radar operators to distinguish between individual aircraft as well as submerged submarines, helping to change the military situation.

一种名为腔磁控管的新管使得雷达操作员能够区分飞机以及水下潜艇, 这有助于改变战局。

And as ammonia catches on, fuel prices and technology costs could decline in step, enabling more ship operators to make the switch.

氨气流行之时，燃料价格和技术成本会随之降低，让更多的船舶营运者转向氨气。

Mini-satellites enable operators to study Earth from LEO and space around it.

9. 微型卫星使运营商能够从 LEO 及其周围空间研究地球。