The Minnesota work on kaersutite also showed the presence of the isotope neon - 21.明尼苏达大学关于钛角闪石的研究表明,其中也存在同位素氖 - 21.Today, most cyclotrons are used either for instructional purpose or for isotope production.今天大多数回旋加速器是用在...
为什么不给所有的镜头都配上遮光罩呢？Why aren't all lenses supplied with a lens hood?因此我们得制作一块很大的遮光窗帘。We therefore had to contrive a very large black-out curtain.那网球裁判戴着遮光帽檐.The tennis umpire wore an eye - shade....
Poverty and illiteracy go together with high birth rates.贫困、文盲与高出生率密切相关。Tack them together with a 1.5 cm seam.用1.5厘米的针脚将它们暂时缝上。Each of you have to work together with one heart.你们大家要齐心合力....
Allows a carrier to lawfully charge a negotiated, non - tariff rate.允许承运人合法地收取已达成协议的, 非 运价本运价.Accordingly, must exert oneself rises lawfully administrative ability and level.因此, 必须着力提高依法行政的能力和水平.Beidasiman is affirmatory...