s rings s环
S RingS Ringe 戒指德语
newton s rings 牛顿环
strong s rings 强s环
saturn s rings 土星环系
newton ' s rings 牛顿环
newton s rings experiment 牛顿环实验
newton ' s rings experiment 牛顿环实验
Ships' S Rings of Chainlet 船用链带S环
In the 1980's, however, Bakker's contention began to be questioned, as a number of scientists found growth rings in the bones of various dinosaurs that are much like those in modern reptiles.
然而,到了20世纪80年代,巴克的论点开始受到质疑,因为许多科学家在各种恐龙的骨骼中发现了与现代爬行动物相似的生长环。
Early 1940's: Engagement rings become the leading line of jewelry in most department stores.
1940年初:订婚戒指在许多百货商场成了珠宝的主打产品。
I suppose the first time I encountered the word "wraith" was in the 70's when I read JRR Tolkien's Lord of the Rings.
我第一次读到wraith(鬼魂)这个词应该是在70年代,它当时出现在JRR·托尔金的《指环王》中。
It wouldn't be the same if I turned it upside down because the carbons - the rings here, the pentose's would all be turned over, the chemistry would look different and the sequence of bases would look different.
记住单链倒过来,就和原来不一样了,这是因为碳原子和糖环结构,戊糖会翻转,使得这个化学结构看起来不一样了,碱基的顺序也不一样了
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