That's the whole difference between quantitative and qualitative research.那就是定量研究和定性研究之间的重大差别。Qualitative analysis shows that water is made up of hydrogen and oxygen.定性分析表明水是由氢氧结合而成的.There are qualitative difference...
They also secrete antimicrobial sub - stances, including lysozyme and defensins.他们还分泌抗菌分的立场, 其中包括溶菌酶和防御.Over - the - counter topical anesthetics and antimicrobial mouthrinses may provide temporary relief.使用非处方的局部麻醉剂和抗菌漱口...
这是喷射式钻头,那是人造聚晶金钢石钻头.This is jet bit and that is a PDC bit.pdc钻头用聚晶金刚石 ( 复合片 ) 作为刀具.PDC bit uses polycrystalline diamond compacts ( PDC ) as cutters.提出一种人造聚晶金刚石镶套新工艺———六面顶高压镶套工艺.A new mounting technology for synthetic dia...