Everything is safely managed through the multiple layers of steel casing and cement that goes into creating a well.

通过多层钢套管和水泥钻井的一切都是经过安全管理。

It has a stainless steel casing and other things that are different, they've moved the microphone over to this side because they've moved the speakers over here and made them much, much louder.

它采用了不锈钢外壳还做了其他的调整，他们把麦克风移到了这边，把扬声器移到这边，还提高了音量。