They placed very stable and accurate atomic clocks on regularly scheduled jet airliners.他们将非常稳定、准确的原子钟装在定期飞行的喷气式班机上.The flier flew a new - type jet plane.飞行员驾驶一架新式喷气机.It is becoming accepted practice that jet aircraft mu...
研究骨胶与表氯醇的接枝共聚反应.Grafting copolymerization of epichlorohydrin and bone glue was investigated.传统的氯醇化方法为气相循环法.The conventional method is the gas - phase recycling method.设备方案.该项目主要生产设备为氯醇化反应器 、 皂化塔 、 精馏塔 、 脱水塔等.Main equipme...
幼苗通常都会放在冷床里越冬。The young seedlings are usually wintered in a cold frame.保持土壤湿润，那样幼苗就能茁壮成长。Keep the soil moist. That way, the seedling will flourish.我正在移植一些卷心菜幼苗.I'm just going to prick out some young cabbage plants....