对于日月雷矿 PRT -2,通过自然沉降法选矿,可使蒙脱石含量达到87.19%.The content of montmorillonite of bentonite ( PRT - 3 ) from Riyuelei reached 87.17 % after natural sink.采用凝聚沉降法从制药厂废醪中回收蛋白质.Coagulation - precipitation process is used to recover ...
A perennial is a plant that lives indefinitely.多年生植物是指能存活很多年的植物。the perennial problem of water shortage缺水这个老问题I wonder at her perennial youthfulness.我对她青春常驻感到惊讶....
It is wise to start infilling with a layer of gravel for drainage.先铺上一层利于排水的砾石是个明智的做法。This method provides evidence for the feasibility of pattern infilling.实例计算和对比论证表明,该方法合理实用.The subsidence mechanism, infilling sequenc...