查询词典 hydrogen fluoride

Experimental studies on effect of hydrogen and heavy hydrocarbon on lower explosion lmits of gas.

氢气及重烃组分对瓦斯爆炸下限影响的实验研究。

In the hands of Yang Chen-ning, his extraordinary achievements, within two years of heavy hydrogen separation found in the child.

在杨振宁手下，他成绩非凡，两年内发现了重氢分离子。

In order to study the effect of hydrogen and heavy hydrocarbon on the lower explosion limits of gas. The experimental system, for the explosion of gas mixing with many ingredients, was established.

为研究矿井瓦斯中含有的氢气及重烃组分对瓦斯爆炸下限的影响，建立了多组分瓦斯混合气体爆炸实验系统。

"Heavy water:Water composed of two atoms of deuterium (D; a heavy isotope of hydrogen) and one atom of oxygen, chemical formula D2O."

重水：由二个氘原子和一个氧原子组成的水，化学式为D2O。

"Heavy water:Water compose d of two atoms of deuterium (D; a heavy isotope of hydrogen) and one atom of oxygen, chemical formula D2O."

重水：由二个氘原子和一个氧原子组成的水，化学式为D2O。

Based on research results on anodic and cathodic process, mixed-potential models of gold dissolution in the presence of heavy metal ions have been constructed. A Viewpoint is proposed that only being associated with cathodic enhancement by using assistant such as hydrogen peroxide do heavy metal ions enhance gold dissolution in cyanide solutions to the greatest extend.

在详细研究了重金属离子存在条件下金的阳极溶解和氧的阴极还原行为的基础上，构造了重金属强化氰化溶金的混合电位模型，提出了只有在辅以阴极强化的条件下，重金属离子才能最大限度强化金的氰化溶解的观点。

Remove water chlorine, hydrogen sulfide, heavy metals and microorganisms, has bactericidal inhibitory effect at the same time, Adjusting the pH of water, the human body balanced leaching of trace elements and minerals required, far infrared technology, will macromolecules Mission water cut into small molecules of water activity.

除去水中的氯、硫化氢、重金属和微生物，具有杀菌抑菌作用，同时，调节PH值，均衡溶滤出人体所需的微量元素和矿物质，远红外线技术，将大分子团水切割成小分子团活性水。

The neutrons are generated by bombard ing a heavy form of hydrogen, called tritium, with a lighter isotope of the gas, called deuterium. The resulting collisions create helium atoms and a stream of neutrons.

中子是通过氢的一种名叫氘的较氚轻的同位素来撞击它的一种名叫氚的重同位素而产生的，它们之间发生的碰撞创造了氦原子和中子流。

Heavy water ; hydrogen isotope ; oxygen isotope ; mass spectrum

重水；氢同位素；氧同位素；质谱

When combined by heavy chromate-sodium hydrogen sulfite and by silane couplant, rapidly quenched NdFeB permanent magnetic particles, can form passive pycho-film (containing Cr〓O〓) and silane composite coating, which can improve greatly its oxidation resistance of NdFeB particles and increase the magnetic properties of bonded NdFeB Permanent Magnetic Composite .

采用重铬酸盐钝化-亚硫酸氢钠还原与硅烷偶联剂处理相结合来包覆处理快淬NdFeB永磁粉，能在快淬NdFeB表面形成致密的含Cr〓O〓钝化膜/硅烷复合涂层，它们显著地改善了快淬NdFeB的抗氧化性并提高了粘结NdFeB永磁复合材料的磁性能，并与其它的NdFeB包覆处理工艺所获得的涂层进行了比较。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48