the principle of liquid membrane technology and its application in pharmaceutical chemical engineering extraction of rare metal trace analysis and treatment of waste water are discussed in detail
详细论述了液膜技术的原理及其在制药化工、稀有金属提取、痕量分析和废水处理等方面的应用
以上为机器翻译结果，长、整句建议使用 人工翻译 。