The infra - red spectra of quinones present a number of interesting features.醌类的红外光谱具有一些有趣的性质.Ethylene and trans - dichloroethylene are both inactive in the infra - red in this region.乙烯和反式二氯乙烯在红外光谱的这个区域都无活性.Infra - red ...
Lunar probe has successfully passed the test temperature.月球探测器已经成功通过恒温测试.In the new century, impressive achievements have been scored in manned spaceflight and lunar probe projects.进入新世纪, 我们又在载人航天与探月工程领域取得了令世人瞩目的重大进展....
Aim To study the chemical constituents of Artemisia anomala S.目的研究南刘寄奴的化学成分.Choice having introduced the hammerhead and cleading chemical composition.介绍了锤头和衬板化学成分的选择.the chemical composition of the soil土壤的化学成分Chemotaxis ...
A build-up of strain on a section of the San Andreas Fault has been detected.已经勘测到圣安德烈亚斯断层的其中一处所承受的拉力在增强。We're going to Andreas's Boutique to pick out something original for both of us.我们要去安德烈亚斯礼品店为我们俩挑选一些新奇玩意儿...