只有4种: 腺嘌呤 、 胸腺嘧啶 、 鸟嘌呤和胞核嘧啶.There are just four kinds: adenine, thymine, guanine and cytosine.腺嘌呤:在DNA和RNA中发现的含氮的碱基 ( 6 - 氨基嘌呤 ).Adenine A nitrogenous base ( 6 - amino - purine ) found in DNA and RNA.尿嘧啶 -- 核糖核酸中的一种嘧啶,与腺...
蕨盲蝽属二新种 ( 半翅目, 盲蝽科)(英文 )TWO NEW SPECIES OF GENUS BRYOCORIS FROM CHINA ( HEMIPTERA, MIRIDAE )丽盲蝽属的新种 ( 半翅目: 盲蝽科 )NEW SPECIES OF LYGUS BUGS FROM CHINA ( Hemiptera: Miridae )突额盲蝽属二新种 ( 半翅目: 盲蝽科 )TWO NEW SPECIES OF PSEUDOLOX...
现在所有的战斗机都装备了机关炮.Now all the fighter planes are all armed with cannon.我们的战斗机都装备了机关炮.Our planes are all armed with cannon.这架机关炮的转速很高,每分钟可达到500转.This machine cannon has a high rotating speed reaching 500 revolutions a minut...
She went to a department store with multiple clothing boutiques.她去了一家百货商场,里面服装品牌众多.From working moms to teenage firls, these women seek out Anna's boutiques.从上班一族的母亲到少女们, 都在寻找安娜专卖流行服装店.Traders may head for less well...
He was on the front lawn, measuring out two circles.他在前面的草坪上丈量并标记出两个圆圈。You'll need such information to use as a baseline for measuring progress.你会需要这些信息作为衡量进展的基准。Many people are confused about the new ways of measur...
Blow - hole colostomies were closed on postoperative day 10, the investigators say.研究者报道小切口结肠造瘘口在术后10日闭合.Slowly he closed the book.他慢慢合上书。He closed his eyes and lay still, trying to purge his mind of anxiety.他闭上眼睛躺着不动，试图...