But such an incident is rare, as it requires a poorly built or maintained diesel system on board, and a poorly trained and supervised engineering crew to allow something like this to get out of hand.

但是，此类事故非常少见，因为发生这种事故的条件是艇上柴油发动机系统制造或维护状况很差，以及工程人员受过的培训和指导非常差劲，这才可能让事件失控。

youdao

This includes data that will result in developing engineering standards, tests and analyses of the crew transportation systems design.

ENGADGET: NASA awards Boeing, SpaceX and Sierra Nevada $30 million in contracts

They threw out restrictions on crew-member nationalities and a rule that prohibited campaigns from selling engineering and performance data along with their old hulls.

FORBES: Marketing