查询词典 tetravalent

Having a valence of four; tetravalent.

四价的；四个原子价的

In this thesis, we concentrate on two subjects relating to group theory: tetravalent half-arc-transitive graphs and integer flows in graphs.

本文的主要内容分为两部分，前半部分是对4度半弧传递图的研究，后半部分是对整数流的研究。

A gray tetravalent metallic element that resembles ''.'zirconium'.

一种灰色的四价金属元素，化学性质与''。

It was found that electrode coating was mainly composed of tetravalent tungsten oxide and nickel oxide by using XRD and EDS analysis.

通过阴极电沉积在钛基体上制备了掺杂Ni元素的WOX涂层电极，采用XRD、EDS分析认为涂层主要是四价钨的氧化物及镍氧化物的混合物。

A live, tetravalent reassortant, orally deliverable rotavirus vaccine has recently been licensed in the United States, but it has been less effective in many developing countries where the need for vaccine is the greatest.

发展灭活疫苗和亚单位疫苗也是出路之一，但是它们均不能提供内源性合成的蛋白质，因而不能产生在控制轮状病毒感染中起重要作用的细胞毒性T细胞反应，故需研究更加完善的疫苗。

On September 6, 2005, the US Food and Drug Administration licensed the combination tetravalent MMRV vaccine for use in children aged 12 months to 12 years. To prevent measles, mumps, rubella, and varicella, MMRV vaccine can be used instead of trivalent MMR vaccine and monovalent varicella vaccine. To fulfill the recommended 2-dose vaccine policies, the first dose is recommended at age 12 to 15 months and the second at age 4 to 6 years.

2005年9月6日，美国食品药物管理局核准四合一的MMRV混合疫苗用於12个月至12岁的小孩；为了预防麻疹、腮腺炎、德国麻疹、水痘，MMRV疫苗用於取代三合一的MMR治疗加上水痘疫苗；为了符合建议施打两次的疫苗政策，第一剂建议在12至15个月大，第二剂在4至6岁。

On September 6, 2005, the US Food and Drug Administration licensed the combination tetravalent MMRV vaccine for use in children aged 12 months to 12 years. To prevent measles, mumps, rubella, and varicella, MMRV vaccine can be used instead of trivalent MMR vaccine and monovalent varicella vaccine. To fulfill the recommended 2-dose vaccine policies, the first dose is recommended at age 12 to 15 months and the second at age 4 to 6 years.

2005年9月6日，美国食品药物管理局核准四合一的MMRV混合疫苗用于12个月至12岁的小孩；为了预防麻疹、腮腺炎、德国麻疹、水痘，MMRV疫苗用于取代三合一的MMR治疗加上水痘疫苗；为了符合建议施打两次的疫苗政策，第一剂建议在12至15个月大，第二剂在4至6岁。

A tetravalent atom, radical, or element.

四价原子，基团或元素

Biotinylated IGF-1 was complexed with tetravalent streptavidin and then bound to biotinylated self-assembling peptides.

首先用四价的抗生物素蛋白链菌素合成生物素化的IGF-1，然后和生物素化的自我组装的肽结合在一起。

Carbon is tetravalent.

碳是四价的。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。