Peb tuaj yeem muab cov khoom lag luam zoo, cov nqi sib tw thiab kev pabcuam zoo tshaj plaws rau cov neeg siv khoom. Peb lub hom phiaj yog "koj tuaj ntawm no nrog nyuaj thiab peb muab koj lub ntsej muag luag ntxhi kom tshem tawm" rau cov tshuaj ntsuab los ntawm cov pa roj carbonate,Tooj liab (II) chloridedihydrate (cucl22ho),Cucl2.2H2o,Kua qaub xiav,Tooj liab (II) carbonate fydroxide (2: 1: 2)Cov. Peb tsom rau kev tsim cov hom lag luam thiab ua ke nrog ntau lub sijhawm paub thiab thawj cov cuab yeej siv. Peb cov khoom koj tsim nyog muaj. Cov khoom yuav muab rau thoob plaws ntiaj teb, xws li Tebchaws Europe, Tebchaws Asmeskas, Austria, Austria, Austrials Nyob zoo ib - Nres tsour platform rau peb cov neeg siv khoom!
Tso koj cov lus