The amount of light available for astrophysical analysis are usually so small.对天体物理分析来说,可接收到的天体光量是相当小的.Much astrophysical information is to be obtained from the intensity of absorption or emission lines.许多天体物理信息要根据吸收线或发射...
孙子孙女的出生给他带来了极大的快乐。It was the birth of his grandchildren which gave him greatest pleasure.你不准打我的孙子孙女，明白吗？You do not hit my grandchildren, do you understand?他的孙子和孙女们在晚年的时候给了他最大的欢乐.His grandchildren afforded him his greates...
随着大型油井的枯竭，要想从北海的石油和天然气开采中盈利，必须着力于开采小储量的油井。To harvest oil and gas profitably from the North Sea, it must focus on the exploitation of small reserves as the big wells run dry.那些油井的主人是个财主.The owner of the oil wells is a man...
I want a pair of wrist protectors and two pairs of kneepad.我要一副护腕和两副护膝.The user must put on the helmet, palm and elbow and kneepad.使用者比须穿带安全帽, 护掌护肘护膝....
Brian McClair nodded in his twenty-third goal of the season.布赖恩·麦克莱尔头球攻入了自己本赛季第23粒进球。The United manager was to be seen frantically signalling to McClair.一会儿可以看到曼联主教练拼命地朝麦克莱尔示意。...
肺细胞约每周新老更替一次。Lung cells die and are replaced about once a week.肺实际上由上千条细微的气管构成。The lungs are in fact constructed of thousands of tiny tubes.肺呼出这些废气被排到空气中。As the lungs exhale this waste, gas is expelled into the atmospher...