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The TDA could be cultivated in the allantoic and yolk fluid of embryonated chicken eggs just as primary isolation of other microbial agents. 为了得到大量的病原体纯培养物，我们尝试从鸡胚进行分离。
Objective: To develop an improved method for the primary isolation and culture of highly purified endometrial glandular epithelial cells in vitro. 目的:在体外建立子宫内膜腺上皮细胞原代分离和培养的方法,以获得高纯度子宫内膜腺上皮细胞。
The positive rates was 25.6% of primary isolation of M.lepraemurium Hawaii strain and 80.2% of secondary isolation in the first twenty passages, after which the positive rates of isola- tion decreased to 58.8 (X_(1)~2 0.05>3.841, P<0.05). 初代分离率为25.;6%25;传代培养20代以前的阳性率为80
The method of measuring polysaccharide content in culture medium of Nostoc flagelliforme cells as well as extraction, primary isolation and purification of polysaccharide was described in this paper. 本文对发菜细胞培养液中多糖含量的测定方法、发菜多糖的提取和初步分离纯化进行了研究,并开发研制了以发菜细胞培养液和发菜多糖为主要原料的两个产品。
Conclusion The strip method to isolate Haemophilus spp. on blood agar is effective and simple.The satellite phenomenon and hemolysis can be observed during the primary isolation. 结论血平板上纸片分离嗜血杆菌的方法简便、实用、效果较好，初次分离时可观察卫星现象和溶血情况，有应用推广价值。
The disease is still in its primary stage. 这疾病仍然在初发阶段。
The little boy left primary school at eleven. 这个小男孩十一岁时小学毕业。
Sure. We are friends since primary school. 当然，我们从小学就是朋友了。
I started primary school when I was 5 years old. 我五岁时开始读小学。
A primary cause of Tom's failure is his laziness. 懒惰是汤姆失败的主要原因之一。
Primary school teachers use a lot of visual aids. 小学教师使用大量的视觉教具。
PRIMARY ISOLATION AND PURIFICATION OF RICKETTSIA-LIKE ORGANISM (RLO) FROM THE TISSUES OF OPHIOCEPHALUS ARGUS 养殖乌鳢类立克次体分离纯化的初步研究
Love and hatred are primary emotions. 爱和恨是基本的情感。
The Democratic primary was held this month. 民主党候选人初选於本月举行。
Primary education comes under the umbrella of local government. 小学教育受地方政府的保护。
He only accepted the primary education off and on in his childhood. 他小时候只断断续续地接受过初等教育。
The primary reason for advertising is to sell more goods. 做广告的根本目的是要多出售货物。
Collins was nosed out by his opponent in the primary. 柯林斯在初选中就被他的对手击败了。
Not derived from something else; primary or basic. 基本的不是从它物派生的; 原本的或基本的
We lost the New Hampshire primary. 我们在新罕布夏州的初选失利了。