Bulletproof cars sheathed in armour.防弹车护有装甲.The policeman survived because of his bulletproof vest.警察因穿有防弹背心而幸免于难.Before long, they may be used in applications as diverse as surgical implants and bulletproof vests.不要多久, ...
His syntheses are okay, but we don't get those spectacular yields he claims.他的综合是对的, 但是我们得不出他所宣称的那种引人注目的结果.The syntheses, properties and applications of benzocyclobutene monomer and polymers are introduced.本文介绍了苯并环丁...
许多种蓝藻有固氮的能力.Among the blue - green algae are many species of nitrogen fixation.菌根起着固氮和贮氮的作用.Mycorhizae perform the function of nitrogen fixation and storage.根瘤菌是生物固氮的能手.Nodule bacteria are very good at biological nitroge...