查询词典 oxide

Its proved by the analysis of reactive mechanism that the support of cerium complex metal oxide had favorable redox synergistic effect between the metals and the active component Pd.

7反应机理探讨分析表明：铈复合金属氧化物载体对主活性组分Pd具有较好的氧化还原协同作用。

For example,we sell different cerium oxide polishing powder and fluid of NIPPON SHOWA and FRANCE CEROX,polyurethane oplishing lens made in America and Japan.

如日本昭和、法国CEROX的各种氧化铈抛光粉和抛光液。美国和日本产的聚胺脂抛光片。

Keywords cerium oxide;nanoparticles;lubricating oil additives;tribological performances

二氧化铈；纳米粒子；润滑油添加剂；摩擦学性能

"In September 2008 around 99.9 percent purity cerium oxide is 18 yuan / kg, while the highest sold over the past 30 yuan / kg," said董森"high-tech electronics, laser, communications, superconducting materials, such as the need for Rare Earth, but China's rare-earth prices has not gone up, not their own pricing, it is a disadvantage."

"在2008年9月前后，纯度为99.9％的氧化铈为18元/公斤，而过去最高卖到30元/公斤，"董森华说，"高科技电子、激光、通讯、超导等材料都需要稀土，但中国的稀土价格并没有水涨船高，无法自己定价，很吃亏。"

Cerium oxide ; high temperature desulfurization ; sorbents

氧化铈；高温煤气脱硫；脱硫剂

Even though CFCs and nitrous oxide both destroy ozone, they actually work against each other.

即使碳氟化合物和一氧化二氮都会破坏臭氧层，他们彼此间还相互作用。

The scientists say that nitrous oxide, not CFCs, are now the biggest threat to the ozone layer.

这位科学家还说，现在，一氧化二氮才是臭氧层最大的威胁，而不是碳氟化合物。

So less CFCs means that each remaining molecule of nitrous oxide will destroy more ozone.

所以如果碳氟化合物少了，那么剩余下来的一氧化二氮分子会破坏更多的臭氧。

The first part consists of three experiments:(1) The rings were incubated in KH, 20, 50 mmol/L 〓 for 1 house, relaxation in response to the EDHF stimuli A23187 in 30nmol/L U46619-induced preconrtaction in the presence of 7 μ mol/L indomethacin, a cyclooxygenase inhibitor, 300μmol/L LNNA, a nitric oxide biosyhnthesis inhibitor, and 1mmol/L tetraethylammonium , a 〓 blocker, or 3 μmol/L glibenclamide , a 〓 blocker, was compared with the control;(2) After the arteries were incubated in KH, UW solution or HTK solution at 4℃ for 4 hours, endothelium-derived relaxation (percentage of 30nmol/L U46619 precontraction) was induced by A23187 in the present of 7 μmol/L indomethacir and 300μmol/L LNNA;(3) After incubation with KH, UW solution and STH (either at 37℃ in oxygenated organ chamber or at 4℃ in a refrigerator for 4 hours), endothelium-derived relaxation (percentage of 30nmol/L U46619 precontraction) was induced by A23187 in the present of 7 μ mol/L indomethacin and 300 μmol/L LNNA.

第一部分研究结果：（1）单纯浸泡于KH的冠状动脉A23187能引发66.67％的血管舒张反应，经TEA及20mmol／L、50mmol／L钾离子作用后，血管舒张反应程度显著降低，但经GBM作用后改变不明显；（2）与保存于KH的冠状动脉相比，A23187引发的血管舒张反应程度，保存于UW液的明显下降，保存于HTK液的无明显变化；（3）在37℃条件下，血管环浸泡于STH出现缓慢轻微的舒张反应，浸泡于UW液初期出现短暂收缩反应，但此后主要以舒张为主：在37℃条件下，血管经UW液保存后，U46619引发的收缩反应程度降低；不论在37℃或4℃条件下，A23187引发的血管舒张反应，经UW液保存后明显下降，但用STH保存后变化不明显。

The car is after the use through period of time, the metropolis on the chapiter of column of general storage battery collects not little oxide, these material meet those who affect electric current pass, cause electric power possibly below chilly climate to be not worth.

汽车在经过一段时间的使用后，一般电瓶柱的柱头上都会聚集不少的氧化物，这些物质会影响电流的通过，在严寒气候下可能造成电力不足。

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。