Development should be planned, not let rip.

开发前需要规划，而不任其发展。

It is tempting either to ignore everyone and just walk away or, conversely, to really let rip.

无视所有人，一走了之，或者与之相反，撕破脸皮，无论哪种做法都对离职员工很有诱惑力。

For example French has this word  petarade means to let rip a tirade of trumps.

例如法语中有这个词 petarade，意思是发出一连串的王牌。

Whereas a steam catapult lets rip with a constant force, the speed and power of a linear motor can be controlled to provide smooth acceleration.

恒定的力使蒸汽弹射器难以控制，而线性电动机的速度和力量都可以控制，可带来平缓的加速。

The expression " to let rip" (rip) means to act or speak without putting limits on yourself, or to behave without any sort of control – to just do whatever it is that you want to do.

“to let rip” （撕裂）这个表达的意思是行动或说话时不给自己设限，或者不加任何控制地行动——随心所欲地做自己想做的事。