tetrad 中文意思是什麼

音標 ['tetræd]
tetrad 解釋
n. 名詞 1. 四個；四個一組的東西。
2. 【生物學】四合子，四分體。
3. 【化學】四價元素。
4. 【幾】拼四小組。
adj. 形容詞 -ic
  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

    花藥壁的發育為基本型，小孢子減數分裂為連續型，小孢子四分體為四面體型，成熟花粉為二細胞型。花藥多為四室，偶見六室和七室。 4
  2. At this point esch chromosome consist of a pair of chromatids and the two associated chromosomes are termed a tetrad

    此時每條染色體由一對染色單體構成，這兩條聯合的染色體稱為四分體。
  3. The guests have more priority in our hotel than in other three - star hotels. the hotel has 375 rooms. among them, there are 15 tuites, 228 standard rooms, 30 singles, 15 sriple rooms and 10 tetrad rooms

    其中套間15間，標準間228間，單人間30間，三人間15間，四人間10間，普通兩人房54間。
  4. It was thought in the past that it was a significant part of the so - called “ narcoleptic tetrad ”, but recent surveys of non - clinical populations, such as ours, suggest that the prevalence may be as high among the general population as among diagnosed narcoleptics

    在過去它常被認為是嗜睡癥的重要臨床癥狀，但最新的關于非臨床人群的調查表明，正常人群中患有睡眠癱瘓癥的比例與確診嗜睡癥人群中的比例相當。
  5. 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

    結果：發現20例胎兒有先天性心臟缺陷，其中完全性心內膜墊缺損2例，原發孔性房間隔缺損3例，單心房、單心室、右室雙出口、三尖瓣下移畸形各2例，室間隔缺損5例，法樂四聯癥2例。
  6. 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 ）大吉山花崗巖類稀士元素具有「四重效應」配分的特點以及微量元素對kjrb 、 y / ho 、 zr艦f以及nb / ta發生明顯分異，暗示在花崗巖巖漿的演化過程中，經歷了充分的流體一熔體作用，同時分異出大量富含f 、 w等礦化劑元素和成礦元素的熱液流體，致使鎢礦的形成。
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