tetrad中文什么意思

n.
1.四个；四个一组的东西。
2.【生物学】四合子，四分体。
3.【化学】四价元素。
+更多解释...4.【几】拼四小组。adj.
-ic

• analysis of tetrad:    四分体分析
• cell tetrad:    细胞四分体; 细胞四分子
• chromatid tetrad:    染色分体四分子; 四分染色单体

例句与用法

更多例句：  上一页  

1. 3 . the development of the anther wall follows the basic type . cytokinesis in the microspore mother cell is of the successive type . the arrangement of microspore in tetrad is tetrahedral . mature pollen grain is of 2 - celled type . the anther has 4 four rooms , accidentally seen six or seven rooms
   花药壁的发育为基本型，小孢子减数分裂为连续型，小孢子四分体为四面体型，成熟花粉为二细胞型。花药多为四室，偶见六室和七室。 4
2. Results : there are 20 cases of fchd , in which 2 cases is of endocardial cushion defect , 3 of atrial septa defect , 2 of single atrium , 2 of single ventricle , 2 of double outlet of right ventricle , 2 of ebstein ' s malformation , 5 of interventricular septal defect , 2 of fallot ' s tetrad . 16 cases were diagnosed by ultrasonography and 4 cases were missed diagnosis in prenatal
   结果：发现20例胎儿有先天性心脏缺陷，其中完全性心内膜垫缺损2例，原发孔性房间隔缺损3例，单心房、单心室、右室双出口、三尖瓣下移畸形各2例，室间隔缺损5例，法乐四联症2例。
3. Strong negative 8 eu shows the granites are high evolved granite . ( 6 ) the tetrad effect of ree and the obvious fractionation between k - rb , y - ho , zr - hf , nb - ta , and sr - eu in the dajishan granites indicate that , the aqueous fluid pays an important role in the evolution of the granites , as well as indicate that there exist enough interaction between peraluminous melt and aqueous magmatic fluid . furthermore the fluorine played a very important role in this process
   ( 6 )大吉山花岗岩类稀士元素具有“四重效应”配分的特点以及微量元素对kjrb 、 y / ho 、 zr舰f以及nb / ta发生明显分异，暗示在花岗岩岩浆的演化过程中，经历了充分的流体一熔体作用，同时分异出大量富含f 、 w等矿化剂元素和成矿元素的热液流体，致使钨矿的形成。

英文释义

名词

1. the cardinal number that is the sum of three and one
   同义词：four, 4, IV, quatern, quaternion, quaternary, quaternity, quartet, quadruplet, foursome, Little Joe