四价

We also studied the structural distortion of the MnO〓 octahedron induced by the vacancies of the A-site in manganite, and the influence on the magnetic and transport properties.

在本文中，我们研究了四价离子在锰位掺杂对锰氧化物材料性能的影响，并比较了上述两种理论的适用性和合理性；同时，我们还研究了A位空穴锰氧化物体系中MnO〓八面体的结构畸变，以及对磁学特性和电导行为的影响。

Werner was correct, however, in his conclusions concerning the octahedral geometry of coordination number 6 for cobalt and platinum.

然而，对于钴和四价的铂等配位数为6的八面体几何构形的结论，沃纳是对的。

Of, relating to, or containing osmium, especially in a compound with a valence of4 or a valence higher than that in a comparable osmous compound.

锇的，四价锇的锇的、与锇有关的或含有锇的，尤指在化合价为4或化合价高于相对低价锇的化合价的化合物中的锇

Several trivalent (boron, aluminium, iron, arsenic and antimony) and tetravalent metal/non-metal derivatives of N-(2-methyl) phenylglycine have been prepared by the interaction of their corresponding isopropoxide with the latter in 1:1 and 1:2 molar ratios in benzene medium.

用N-(2-甲基)苯基甘氨酸合成了几种及四价金属/非金属衍生物。

Our aim was to do a combined analysis of three randomised clinical trials to assess the effect of a prophylactic quadrivalent HPV vaccine on the incidence of these diseases.

我们的目标是通过三组随机临床试验的联合分析来评估预防性四价体HPV疫苗在这些疾病发病率中的作用。

Fewer than half of some 1100 surveyed primary care physicians in Texas said they follow current vaccination recommendations to vaccinate adolescent girls with the approved quadrivalent human papillomavirus vaccine.

在德克萨斯州，参与调查研究的1100名初级保健医师中不到半数认为目前的疫苗接种指引是合理的，推荐青春期女性预防性使用四价的人乳头瘤病毒疫苗。

Prophylactic administration of quadrivalent HPV vaccine was effective in preventing high-grade vulval and vaginal lesions associated with HPV16 or HPV18 infection in women who were naive to these types before vaccination.

解释：预防性注射四价体HPV疫苗能有效防护女性在接种疫苗前初次感染HPV16 或 HPV18发生病毒相关性高分级的外阴和阴道损伤。

ACIP has previously recommended quadrivalent meningococcal conjugate vaccine (MCV4; Menactra , Sanofi Pasteur) for all persons aged 11 to 18 years, as well as for persons aged 2 to 55 years who are at increased risk for meningococcal disease.

ACIP过去建议所有11至18岁的青少年、以及2至55岁且处於脑膜炎疾病风险的人们都应该接种四价脑膜炎球菌接合疫苗（MCV4；Menactra；赛诺菲巴斯德公司）。

A soft silvery-white tetravalent radioactive metallic element; isotope 232 is used as a power source in nuclear reactors; occurs in thorite and in monazite sands.

一种软质、银白色、放射性四价金属元素，同位素用作核反应能源，见于钍矿和独居石沙中。

An abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds.

一种丰富的非金属四价元素，有三种同素异形体：无定形碳、石墨、金刚石。

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。