She was efficient and reliable.

她既能干又可靠。

《柯林斯英汉双解大词典》

A smart grid would use digital technology to collect, communicate and react to data, making the system more efficient and reliable.

而智能电网则利用数字技术，能够收集、传导数据，并作出反应，这提高了系统的效率和稳定性。

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On the other hand, it is so easy to install and begin to use SQL Relay, and it is so efficient and reliable, that it invites casual experimentation.

另一方面，安装和开始使用SQL Relay是如此地简单，并且它非常地高效和可靠，以至于它鼓励人们进行一些简单的实验。

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And the same holds true if you merely want a half-way efficient and reliable economic system.

FORBES: Apollo's $5 Million Course in Greed

It said the Next Generation 737 was "the most fuel-efficient and reliable" single-aisle plane in the market.

BBC: Boeing and United Airlines announce $14.7bn deal

BrightSource hopes that in time its technology will prove sufficiently efficient and reliable to overcome the disadvantage of having to raise so much capital.

ECONOMIST: Some solar plants need to be big; most of them don��t