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A standard method of algal bioassay for evaluating the toxicity of toxic chemical was applied in the experiments. The lowest no observable effect concentrations (LNOEC) of Cu, Zn and Mn on the growth of Closterium lunula were found to be .8? μg/L, .?
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运用评价化学品毒性藻类测试的标准实验方法 ,得到铜、锌和锰对月形藻生长的最小无显著差异浓度 (LNOEC)分别为 .8μg L、 .μg L和 .7mg L ,抑制月形藻生长的 9h半效应浓度 (9h EC0 )分别为 99. μg L、 8.0 μg L和 .mg L . |
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A statistical analysis to the failures of the distribution switchgear during 990～999 is made. The features of the SF and vacuum circuit breaker are analyzed. It then introduces some trends of the application of non oil high voltage switchgear.
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本文介绍了中国电力系统配电电压等级开关设备的现状 ,统计分析了配电开关设备 990～ 999年的事故情况以及SF、真空开关设备的故障特点 ,指出了高压开关设备无油化的若干趋势。 |
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A strain of fungus (C_(Z08)) was isolated from the lesions of white piedra of a female child. Judging from the result of mycological identification, this strain of fungus was confirmed as Cepholosporium acremonium.
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作者从白毛结节病患儿毛发损害中分离出一株真菌(CZ_(08)),经一系列真菌学研究鉴定证实,此菌系顶孢头孢霉。 |
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A study of ERP in children with amentia
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智力低下儿童事件相关电位的研究 |
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A study of Isoket solution in the treatment of heart failure
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异舒吉针剂治疗心功能不全的疗效观察 |
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A study of Nosema bombi infections in bumble bees,Bombus spp.
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熊蜂微孢子虫感染熊蜂(Bombus spp.)试验 |
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A study of tarnish induced by Candida albicans on Co-Cr alloy,Ni-Cr alloy and casting titanium denture
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白色念珠菌对铸钛、Co-Cr合金、Ni-Cr合金修复体失泽腐蚀的影响 |
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A study of the MCH prepay scheme in rural China
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贫困农村地区妇幼保健保偿制案例分析 |
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A study of the parallel rela-tionship between the occlusal plane and theline connecting nasal alar and tragus wasmade in 90 dentulous cases by using cepha-lometry.
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作者应用头侧位X线片测量法,对90例有牙颌平面与0例无颌堤平面进行了测量和统计分析。 |
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A study on HLA-A、-B genes associated with Guillain-Barre syndrom
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格林-巴利综合征与HLA-A、-B基因关联的研究 |
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A study on aqueous extract of lignum sappan inducing HL-0 cell apoptosis
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苏木水提物诱导HL-0细胞凋亡的研究 |
