The source codes that are found on the net are either too complex (20 + classes), or don't provide sufficient efficiency.

在网络上找到的源码要么太复杂(超过20个类)，要命没有提供足够的效率。

youdao

An allocation satisfies the static efficiency criterion if it maximizes the net benefits from all possible USES of the resource.

一个如果从各种资源使用或最大净效益的满意的静态效率标准分配。

youdao

Energy efficiency (net energy gain or energy ratio) of corn-based ethanol as a substitute for fossil fuel is an important criteria for assessing its sustainability.

玉米燃料乙醇作为化石燃料的替代品，能量效率(净能量或能量比)是评价其可持续性的一个重要标准。

youdao

It's breaking the rules, typically in small ways, to net you greater efficiency from the working systems you're stuck within.

BBC: Hacking work: How to break the rules to work better