三核的

The experiment was conducted to study the possible effects of toxicity in the toad erythrocyte s induced by dicofol,48 mature toads,Bufo gargarizans,were injected with five different dosages of DCF in coelom every 24 h and 1-4 times in succession,and cells producing micronucleus,nuclear abnormality and cell abnormality were counted separately.

用5种不同剂量的三氯杀螨醇(d icofo l，DCF)分别对48只中华蟾蜍成体进行体腔注射法染毒1~4次，观察并统计中华蟾蜍成体外周血红细胞产生微核、核异常及细胞异常的细胞数。

Now we have known that SARS-CoV encoded 11 varietal proteins. They have 4 constitutive proteins: spike protein, membrane protein, envelope protein and nucleocapsid protein. Spike protein trimer form spike and exsertion? virus peplos on the surface. Spike protein is archi-surface antigen component of virus, it has acceptor binding and membrane fusion activity. Spike protein has important effect at tissue tropism, cell-fusion and toxicity. Nucleocapsid protein can bind genome RNA to shape neucleocapsid. Membrane protein and envelope protein are necessary constituent to shape virus peplos. Spike protein is I-type membrane glycoprotein, it mediate virus binding with host cell epimembranal acceptor and to fuse host cell membrane.

SARS-CoV属于巢状病毒目、冠状病毒科，为单正链RNA病毒，基因组全长约29.7kb，已知编码11种蛋白，其中包括4种结构蛋白，分别是刺突蛋白、包膜蛋白、小包膜蛋白和核蛋白或核壳体蛋白。S蛋白三聚体形成突起，伸出包膜表面。S蛋白是病毒的主要表面抗原成分，具有受体结合和膜融合活性，在组织嗜性、细胞融合和毒力等方面起重要作用。N蛋白与基因组RNA结合形成核衣壳。M蛋白和E蛋白是包膜形成所必需的成分。

We've got to take that, we've got to make that into a fusion reactor. Because we want 30 million years worth of fusion power for the Earth. This is the device we're building now.

我们必须做这些，我们必须使它成为一个核融合反应炉，因为我们希望为地球获得相当於三千万年的核融合能，这是我们正在建造的装置（ITER：国际热核实验反应炉）。

Cephalotaxine ester of 2-oxo-6-methylheptanoic acid was treated with lithium diisopropylamide and Me O-(1-methoxyisopropyl)glycolate to give a mixture of homoisoharringtonine and its stereoisomers with 56% yield. The four stereoisomers separated by TLC showed identical mass spectra and almost superimposed IR but with different 1H NMR spectra. The configuration of the 2'-C and 3'-C of the four isomers were postulated based upon their 1H NMR spectra as compared with the 1H NMR spectra of isoharringtonine and its stereoisomers.

2-氧代-6-甲基庚酰基三尖杉碱(3)与0-(1-甲氧基异丙基)羟基乙酸甲酯(4)在强碱性试剂二异丙胺锂存在下，起亲核加成反应，反应中间体5在室温用酸性丙酮水解，得到一种新的三尖杉酯类生物碱一一高异三尖杉酯碱(6c)及其立体异构体(6a、6b、6d)的混合物，产率56%、通过制备薄层层析分得这四个立体异构体，它们的1H NMR和异三尖杉酯碱及其立体异构体的1H NMR类似，推定了它们的绝对构型。

The effects of absorbing organic extracts from drinking water by five kinds of China made activated carbons were compared using three cytological indexes:the rate of inhibition cell growth,the micronucleus rate of binucleated cellsand the cytokinesis block proliferation index.

采用三项细胞学指标(细胞生长抑制率、双核细胞的微核率和胞质分裂增殖指数)对 5种国产活性炭吸附饮用水中有机提取物的作用进行了比较。

By means of hemagglutination and serological absorption tests, cross reactions between special antiserum and RBC of gynogenetic red carp F_2 and gynogenetic red mirror carp F_1 (RMGF_1) were investigated.

以抗雌核发育红鲤抗血清为试剂，三个雌核发育系R_(8305，R_(8413)，RMGF_1的RBC反应值分别为1521—2360，1521—2028，853—1521，普通红鲤、镜鲤、白鲢的反应值在80—782。

According to metamophic core complexes, syn-tectonic intrusive rock and its isotope dating data, divide Songliao basin evolution history into three stages: 1 orogenic period land-land collision; 2 post orogenic period mantle delamination, metamophic core complexes uplift and collapse extension; 3 weak extend stable depression in continent.

根据变质核杂岩、同构造侵入岩以及同位素年龄资料，将松辽盆地构造演化历史划分三个阶段：(1)造山期的陆—陆碰撞；2造山期后的地幔拆沉，变质核杂岩上拱和塌陷伸展断陷；(3)弱伸展稳定大陆内坳陷。

The scientists also found that three brain structures — the nucleus accumbens, amygdala and orbitofrontal cortex —influenced each other more in men than in women, and the better that circuit was connected, the better the males did in the game.

科学家也发现三个脑部结构：伏隔核、杏仁核、脑前额底部在男性脑部產生更多影响，其脑部联繫越好，男性在游戏中的表现就更好。

S. trifoliorum is similar in biology and morphology to S. sclerotiorum , but S. minor produces much smaller sclerotia and generally produces apothecia less frequently in nature.

三叶草核盘菌在生物学和形态学上比核盘菌要小，小菌核产生的菌核非常小并且在自然状况下一般很少产生子蘘盘。

Anti-nuclear groups held protest vigils for the 30th anniversary of America's worst nuclear power plant accident.

反核组织举行守夜抗议活动，纪念美国有史以来最严重的核泄露事件发生三十周年。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！