A United Nations study says a thick cloud of pollution covering southern Asia threatens the lives of millions of people.

The right unit was in black and holding black flags, which looked from a distance like thick black clouds covering the sky.

右边的穿黑色衣服，拿着黑色的旗帜，远远望尘莫及去像是满天结集着浓密的乌云。

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The thick ice covering Unnamed Lake begins to melt as the spring approaches, when several birds find their paradise upon the lake and in the woods.

春天的脚步踏碎了未名冰封的湖面，小鸟儿却在冰面上、灌木间找到了它们的乐园。

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Doctors said a thick covering of snow broke the woman's fall, and her body was relaxed because she was not fully conscious at the moment of impact.

医生们称，地上厚厚的积雪减轻了她下落时的撞击力。而且她的身体非常放松，因为她当时在下降压力的作用下神智不清。

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To protect the whale form the cold of the Arctic seas, nature has provided it with a thick covering of fat called blubber.

大自然为了保护鲸鱼，使它不致在北冰洋受冻，便让它长了厚厚的一层脂肪，叫做鲸脂。

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Agusan is the important polymetallic mineralization zone of iron and copper ( gold), it is difficult for geological survey because of thick covering.

菲律宾阿古桑地区是重要的铁、铜（金）多金属成矿带，由于覆盖厚地质工作难度大。

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It is possible for using stiff piled composite foundation for tall-buildings in Karst rock bed under thick covering soil.

提出了在一定埋深下岩溶地区高层建筑应用刚性桩复合地基是可行的。

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There is a thick covering of leaves in the forest, which are very easy to catch fire.

森林中有厚厚的一层树叶，它们是非常容易着火的。

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Having seemingly waxed every hair from her sun-kissed body, the beauty avoided frostbite to her most private regions with the help of a thick covering of fur.

这位佳人似乎给自己那被晒成小麦色的胴体都剃了毛，因此，为避免私处冻伤，她给自己穿上了厚厚的一层皮毛。

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Determination of Curing Temperature and EV Time for Thick walled Rubber Article

橡胶厚制品硫化温度与等效硫化时间的测定

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OBJECTIVE: To explore the effects of UA in different concentrations on human umbilical vein endothelial cells line ( ECV304), malondialdehyde ( MDA), nitric oxide ( NO) and 3-( 4,5-dimethyl thiazole-2)-2, 5-diphenyl thiazolyl blue ( MTT) in vitro.

目的：观察不同浓度的尿酸对体外培养的人脐静脉内皮细胞株（ECV304）丙二醛，一氧化氮及3-（4,5-二甲基噻唑-2）-2,5-二苯基四氮唑溴盐的影响。

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Followed the prodrug fludarabine incubation, the cytotoxic effect, bystander effect and apoptosis induction of PNP/ fludarabine suicide gene system on BEL7402 cells were detected by methyl thiazolyl tetrazolium ( MTT) colorimetric method and Annexin V-FITC apoptosis detection kit, respectively.

分别应用四甲基偶氮唑蓝（MTT）比色法和Annexin V鄄FITC凋亡检测试剂盒检测PNP/fludarabine自杀基因系统对BEL7402细胞的细胞毒效应、旁观者效应和诱导凋亡作用。

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Methods Methyl thiazolyl tetrazolium ( MTT) assay was used to measure its effects on the proliferation of SHG-44 cells cultured with different concentrations of Res for 6 h, 24 h, and 48 h.

方法四甲基偶氮唑蓝（MTT）比色法测量不同剂量的Res作用6h、24h和48h后对SHG-44胶质瘤细胞增殖的影响。

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METHODS: The flow cytometry, methyl thiazolyl tetrazolium ( MTT) and trypan blue staining were used to analyze the effect of mao er yan plant acid on inhabitation of tumor cells.

方法：采用流式细胞仪、噻唑蓝（简称MTT）法和锥虫蓝染色法对猫儿眼植物酸抗肿瘤细胞作用进行分析。

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Methods Different concentrations of EGF were added to adult buffalo lens epithelial cells cultured in vitro. The proliferative characteristics of the cells were measured with methyl thiazolyl tetrazolium ( MTT) assay.

将不同浓度EGF作用于体外培养的成年水牛晶状体上皮细胞，采用MTT法测定细胞的增殖能力。

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Inverted microscopy, scanning electronic microscopy and flow cytometry were used to detect DCs and methyl thiazolyl tetrazolium ( MTT) cytotoxicity method was used to assay the killing activity.

用倒置显微镜、扫描电镜及流式细胞仪等方法检测DC，四甲基偶氮唑蓝（methyl thiazolyl tetrazolium，MTT）法测定杀伤活性。

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Cell viability was examined by methyl thiazolyl tetrazolium ( MTT) assay and50% inhibitive concentration ( IC50) of cisplatin was examined also.

四甲基偶氮唑蓝比色法检测细胞存活率并计算顺铂的50%抑制浓度（IC50）。

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Synthesis of Dialkyl 2-Amino Substituted Thiazolyl Phosphonates

2-氨基取代噻唑基膦酸酯的合成

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Methods: Methyl thiazolyl tetrazolium ( MTT) analysis was used to detect the discrepancies of eight digestive tract cancer cell lines' sensitivities to EGCG.

方法：采用四唑蓝（MTT）比色法检测8株消化道肿瘤细胞株对EGCG敏感性的差异；

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Methods The cytotoxic effect of 2%-10% ethanol on HCC cell line HCC 9204 was detected by thiazolyl blue ( MTT) assay.

方法：用噻唑蓝（MTT）法检测浓度分别为2%～10%的乙醇对HCC9204的杀伤作用。

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Methyl thiazolyl tetrazolium ( MTT), luminal and anti-oxidative activity reagent xanthine oxidase were all from Sigma Company.

鲁米诺购自Sigma公司。抗氧化活性试剂用黄嘌呤氧化酶（Sigma公司）。

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