natural: adj.1.自然界的；关于自然界的。2.天然的；未开垦的；野生的。3.固有的,生来的,天赋的(opp. acquired)；出乎本性的。4.自然的,不加修饰的,不加做作的。5.本来的；(论理上或人情上)当然的,不勉强的,常态的；普通的,平常的。6.逼真的。7.私生的,庶出的。8.【音乐】本位的；标明本位号的。9.【数学】自然数的；真数的。短语和例子the natural d
In order to know whether the hau3r gene amplified by pcr had its natural activities , hau3r gene from phz2055 was cloned into phz1060 , a streptomyces - e . coli bifunctional expression vector , to give phz2057 . when e . coli dh5 a ( phz2057 ) was induced at 42c , large amounts of hau3r protein were produced to form inclusion bodies 将来自phz2055的hau3 ~ r基因克隆到大肠杆菌?链霉菌双功能表达载体phz1060的启动子p _ r下游的xba和ecor之间，获得重组质粒phz2057 ，经热诱导hau3 ~ r基因超量表达但仍以包含体形式存在。
