Remember that even a trace of dirt in a carburetor or fuel pump can cause fuel-system and engine trouble. be very careful about dirt when repairing these units.

化油器或燃料泵中的小点污迹都可造成燃料系统和发动机的故障。在检修这些部件时，务必小心。

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The application of phenolic molding compounds in car brake system and engine parts is discussed in detail. The problem in the application of phenolic molding compounds in automotive is also depicted.

同时详细讨论了酚醛模塑料在汽车刹车系统和发动机等部件中的应用以及酚醛模塑料在汽车应用中存在的问题。

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To do that, Rothman and his team had to build a search engine, a payment system, a pricing engine, a feedback system, and even fussed around with the envelopes customers received.

FORBES: Glyde: The Anti-eBay

Mechanisms in place in Facebook's system and in Google's search engine can look for suicidal messages and direct people to help.

CNN: Mark Milian,

And we believe that the free enterprise system is the greatest engine of growth and prosperity that the world has ever known.

WHITEHOUSE: The White House