...last year's aggressive price slashing by campsite newcomer, Airtours.野营服务新军英国空中旅游公司去年咄咄逼人的大幅削价The newcomer was greeted with an avalanche of publicity.新来者受到了广泛的关注。They were joined by a newcomer who came striding a...
大约20分钟后,停止吹氧,对钢液取样分析.After about twenty minutes the blow was stopped and the metal was sampled.转炉采用高效吹氧技术可提高供氧强度0.The intensity of oxygen supply and steel output can be increased by 0....
前质体能分化成各具特点的细胞器,如淀粉体, 叶绿体和有色体.The proplastids differentiate to form characteristic organelles such as amyloplasts, chloroplasts and chromoplasts.淀粉体:一种与合成和储存淀粉粒有关的质体.Amyloplast A plastid that synthesizes and stores starc...