This will greatly save manpower and reduce mistakes.

这将大大节省了人力，减少失误。

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This can save manpower, energy, reduce equipment downtime.

这样可以节约人力，能源，减少设备停机次数。

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The principle feature is to save manpower, physical resources and simplify the production flow.

最大特点是节省人力、物力及简化制作流程。

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To save manpower, the FAA designates employees at aircraft makers to oversee the safety testing of new planes.

NPR: NTSB Probes Safety Testing Of Boeing 787 Batteries

Amazing to think all of the money and manpower that went into a solution to save you having to read the letters "L" and "R" and making a decision for yourself.

ENGADGET: Self-aware headphones switch channels depending on which ear they're in (video)