If you cut down on meat, you will be 'saving food', since raising livestock costs more plant material than the energy and nutrition you would get from eating the plants themselves.
假如你减少肉食，你将，因为养育活体所耗的植物物质的能量和营养要比你直接从食用植物本身多很多。
This computer management information system is set up for wall material of building energy saving in Beijing.
本系统是为北京市建筑节能墙体材料建立的计算机管理信息系统。
One of the main reasons to experiment with this material was the energy saving.
尝试使用这种材料的一个主要原因是为了节能。
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