Low-waste toilets have been installed on the mountain, and tens of thousands of volunteers haul away tons of trash every year.
山上安装了环保厕所，数以万计的志愿者每年运走成吨垃圾。
2
Short-hole shrinkage mining is an effective method for mining steep-thin veins, and it has advantages of high-efficiency and low-waste and simple technology.
浅孔留矿法对急倾斜薄矿脉的矿体开采是一种有效的采矿方法，具有高效低耗与工艺简单等优点。
3
According to abundant low-waste heat produced from Marine Power Plant, which is suitable for air-conditioning system of ship and be used as driving heat source of the LiBr Absorption refrigerator.