三价的

The onset of syneresis appeared at a critical Crdensity in a gel and the syneresis became serious when the Cr density increased.

脱水与凝胶的交联密度即参与交联反应的三价铬的含量有密切联系。

The process of syneresis can be described by means of apperant first-order reaction and the rate constant increased with increasing the temperature and the initial Crconcentration. The apparent activation energy was about 34.5 kcal/mol.

突发脱水之后的过程可以用一级反应动力学描述，反应速度常数随三价铬的浓度和温度的增高而增大，活化能为34.5kcal／mol。

Chromium is the most important component of glucose tolerance factor, and it can strengthen the function of the insulin. It is one of the necessary micro-elementary to human and animal.

摘 要：三价铬离子是构成葡萄糖耐量因子的重要组成部分，能够增强胰岛素的作用，是人和动物不可缺少的微量元素之一。

One such crystal is the ruby, which contains trivalent chromium ions dispersed in a matrix of alumina

这样的晶体有一种叫"红宝石"，它包含的三价铬离子弥散在氧化铝的基体中。

Trivalent chromium electroplating not only can reduce pollution obviously and save pollution treatment cost, but also can improve the quality of electroplating products.

三价铬电镀不仅可明显减少电镀对环境的污染，节省大量的污染治理费用，而且还可提高电镀产品的质量。

Any of various salts containing the negative trivalent radical Fe6and used in making blue pigments.

一种比较近代的、人们好采用的技术是在混合过程中加入可溶性的三价锑衍生物。

Chemistry having more than one valence, or having a valence of 3 or higher.

具有一个以上的化合价的，或具有三价或更高价的。

A trivalent plant expression vector containing Bt cry1Ah gene, cry1Ie gene and glyphosate-tolerant 2mG2-epsps gene was constructed, glyphosate isopropylamine salt as a screening agent, 2mG2-epsps gene as a selectable maker gene. The vector was transfer into maize immature embryonic calli by microprojectile bombardment, and 69 T0 generation plants were obtained. PCR analysis showed that 17 plants had the integration of insect-resistant cry1Ah, cry1Ie gene and glyphosate-tolerance 2mG2-epsps gene.

同时构建了含有Bt cry1Ah和cry1Ie基因和耐草甘膦2mG2-epsps基因的三价植物表达载体，通过基因枪轰击法转化玉米愈伤组织，以2mG2-epsps为筛选标记基因，以草甘膦异丙胺盐作为筛选剂，获得T0代转化植株69株，PCR检测结果表明：有17株已完整的整合有抗虫基因cry1Ah、cry1Ie和耐草甘膦基因2mG2-epsps的3个目的基因，RT-PCR分析外源基因可以正确转录，已获得结实转基因植株。

A new process electrodepositing antiwear Fe—Ni—P alloy was developed in this paper. The stress has been put on resolving bath oxidation and a series of problems of the coating quality which Fe〓 would bring in existence of large amount of iron in bath.

立足于摩擦表面改性和非晶合金的特殊性能，开发研究了电沉积Fe-Ni-P耐磨合金新工艺，着重解决镀液中大量铁存在时的氧化以及三价铁离子给镀层质量带来的一系列问题。

Release of ferric iron catalyzed the conversion of super oxide and hydrogen peroxide to the more toxic hydroxyl radical which has been shown to be an important mediator of ischemic brain edema.

三价铁释放，促使过氧化物和过氧化氢转化成毒性更大的羟自由基，这是缺血性脑水肿的一种更重要的递质。

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。