如果扎进一颗大头钉,气球就会突然爆开.The balloon will pop if you put a pin in it.配置普通轮胎的车辆并不总是被大头钉降服.Even cars with ordinary tyres are not always incapacitated by the spikes.乔用锤子把一只大头钉敲进墙中用来挂一幅画.Joe hammered a tack into the wall to hang a...
Activity andstability of immobilized glucoamylase and penicillin acylase were studied.本文着重论述了两大类固定化酶载体的合成及其分别用于固定糖化型淀粉酶和青霉素酰化酶的研究.The optimum conditions that α - amylase and glucoamylase hydrolyzed chestnut starch were f...