查询词典 trivalent

Because of the high ability of lanthanum accumulation, Chara can act as a biological indicator or scavenger of rare earth elements and trivalent actinides pollutions in aqueous solutions.

珊瑚轮藻具有很强的富集La3+的能力，可以用于水体中稀土元素、三价锕系元素污染的检测与污染防治。

In order to investigate the capabilities of zircon as waste forms for immobilizing simulated trivalent actinides, trivalent europium (Eu3+) was used as the simulacrum for trivalent actinides, the waste forms containing 20 mol% Eu3+ were successfully synthesized by high temperature solid reaction and using ZrO2, SiO2 and Eu2O3 powders as starting materials.

中文摘要：为研究锆英石基三价锕系模拟核素固化体的性能，利用Eu3+作为三价锕系核素模拟替代物质，以ZrO2、SiO2和Eu2O3粉体为原料采用高温固相法制备了包容Eu3+为20mol%的锆英石基固化体。

In acid and alkali soil, there are mainly indissoluble bivalent or trivalent phosphates, which cannot be utilized by plants.

在酸碱性土壤中，磷主要以植物难以吸收利用的难溶性二价或三价阳离子的形式存在。

The components comprise the following materials: 40 to 50 percent of GeO2, 20 to 25 percent of SiO2, 0 to 10 percent of Al2O3, 5 to 16 percent of MO or MF2, 0 to 10 percent of R2O3, and 1 to 10 percent of ZrO2; the M is one or more of the alkaline-earth metal ions, the R is one or more of the trivalent rare earth ions.

一种0.3～5um波段红外透过耐高温玻璃陶瓷材料及制备方法，成分包括GeO 2 40-50％，SiO 2 20-25％，Al 2 O 3 0-10％，MO或MF 2 5-16％，R 2 O 3 0-10％，ZrO 2 1-10％；M为碱土金属离子中的一种或几种，R为三价的稀土金属离子中的一种或几种。

The subcutaneous administration of sodium dimercaptosuccinate at a dose of 1500 mg/kg immediately after the intraperitoneal injection of trivalent antimonyl ammonium gluconate increased the LD_(50) of the latter from 90—112 mg/kg to 1300—1460 mg/kg.

皮下注射二巯基丁二酸钠1500毫克/千克，司将小鼠一次腹腔注射锑铵的半数致死量从90—112毫克/千克提高至1300—1460毫克/千克。静脉注身锑~(124)铵予家兔后，如立刻经同一途径注射二巯基丁二酸钠，亦可降低锑铵的急性毒性。

Environmental screws (three price white zinc, trivalent black zinc, color zinc trivalent, environmental protection, nickel, green black nickel).

环保螺丝（三价白锌、三价黑锌、三价彩锌、环保镍、环保黑镍）。

The change of the flash point of the mixed trivalent alcohol and the mixed trivalent ether and the mixed alcohol -ether has been studied in this paper by the open crucible flash point mensural apparatus,the experiential formula in fixed condition are projected,and the change regularity of the flash point of the mixed liquid are figured in this paper.

利用开杯闪点测定仪对三元醇类混合、三元醚类混合、醇醚混合等不同情况下混合液体的闪点变化进行了实验研究，推算出了三元混合液体在规定实验条件下闪点变化的经验公式，并用图示法分析了混合液体闪点随配比的变化规律。

While high quality deposition from trivalent chromium electrolyte could only be sustained for short periods and thin deposits obtained of decorative value only, it is difficult to substitute heaxvalent chromium plating in engineering electrodeposits by trivalent chromium plating at all.

因此，本文在电沉积出镍-铁合金纳米晶的基础上，采用脉冲电沉积的方法研究了在三价铬体系中获得纳米晶铬和铬-镍-铁合金纳米晶厚镀层的工艺及其基础理论，以期解决三价铬镀液完全代替六价铬电镀的难题。

I put into production since the Secretary has been actively introduce advanced production equipment innovation and technology, in order to meet customer orders in Europe and the United States has launched a new demand for environmental protection trivalent chromium process, for the plating of the following: trivalent chromium, chromium -, A half-chrome, pearl chromium, Heiqiang color, green bronze, gold, champagne.

我司自投入生产以来，积极创新引进先进生产设备及工艺，为满足欧美客户订单的需求现已推出新型环保三价铬工艺，镀种为以下几种：三价铬，光铬，半光铬，珍珠铬，黑枪色，青古铜，金色，香槟色等。

Mainly engaged in plastic plating technology research, development, production and processing, the company's main products are copper, bronze plating, nickel, nickel-plated black, and the plating of trivalent chromium 6 Trivalent chromium, and so on.

永翔五金塑胶有限公司主要从事塑胶电镀技术的研究、开发、生产及加工，目前公司主要产品有镀铜、镀古铜、镀镍、镀黑镍、镀三价铬及六价铬等。

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。