Proper voltage must be supplied for reliable operation.

为确保稳定运行，必须供给正确的电压。

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High quality bearings and motor ensures long, reliable operation.

高品质的轴承和电机确保长期，可靠的操作。

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Not only convenient operation and maintenance, and reliable operation.

不但操作维护方便，而且运行可靠。

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The C4 high output LED in this flashlight provides up to 180 lumens of light output and a runtime of 50, 000 hours for reliable and long lived operation.

ENGADGET: Explosion-proof flashlight could be the first to outlive its owner

Chanceller Merkel described the project as a "milestone in energy co-operation" and the "basis of a reliable partnership" between Russia and Europe.

BBC: Nord Stream gas pipeline opened by Merkel and Medvedev

While the Balkans did net the Germans a reliable source of oil, attempting to squeeze an invasion of the Balkans and Operation Barbarossa into the same summer was a gigantic mistake.

FORBES: What Were The Biggest Strategic Mistakes The Germans Made During World War II?