查询词典 hydrogen

The results show the magnetic field can affect the strength of hydrogen bonding between acetone and water molecules.

这一结果则说明磁场作用能够增强丙酮与水分子间的氢键相互作用。

This paper reports on oscillatary reaction using benzoic acid cortainingmethylene radical hydrogen as medium.

本文报导了以不含亚甲基活泼氢的苯甲酸为底物的化学振荡反应。

This paper proposes that weak acid is a coordination compound that regards hydrogen ion as "coordination body" and regards acid radical as central atom.

本文首次提出将弱酸看成是以氢离子为"配体"，以弱酸的酸根为中心"原子"所形成的"配合物"，通过计算该"配合物"的生成函数N并绘制PH－N图，用Bjerrum，N。

A salt of carbonic acid in which one hydrogen atom has been replaced; an acid carbonate.

碳酸的一种盐，其中一个氢原子被替换，一种酸式碳酸盐。

Because acid rain can transport excessive hydrogen ion into the soil, then cause decrease of pH value and cation saturation, accelerate acidify of soil, therefore, it is significant to study the ecological effects of combined pollution for heavy metals under intimidation of acid rain in the regions where acid rain often take place.

土壤吸附-解吸试验的土壤按照既定方案处理后，在25±1℃，土壤水分20％左右条件下培养2个月，待重金属元素与土壤的反应基本稳定后制样进行等温吸附—解吸试验，研究紫色土在单一及复合条件下镉、锌的吸附特征和酸雨胁迫下的解吸特征以及此条件下吸附一解吸与镉、锌生物有效性的关系。

Of hydrogen ions may result in an increase in acidity.

了氢离子的量而导致酸度的提高。

The homogeneous hydrogen transfer of acrolein to allyl alcohol was carried out with aluminium isopropoxide as catalyst.

采用异丙醇铝为催化剂，丙烯醛与异丙醇进行均相氢转移反应合成烯丙醇，对催化剂的再利用及催化剂的失活原因进行了研究。

R5 also can be hydrogen, and R6 can be an acyl, forming a poly.

R5的也可以氢， r6可以是一个酰基，形成了聚。

The hydroxyl amino acid has been replaced, the resulting compounds can also be regarded as ammonia hydrogen has been replaced by acyl derivatives.

羧酸中的羟基被氨基取代后，生成的化合物，也可看作是氨的氢被酰基取代的衍生物。

Lights did not affect the tone of TGP_(2).Hydrogen peroxide had more degradation effect on TGP_(1) than TGP_(2).The ascorbic acid had fortification effects on the tone of pigment than others.At the same time,TGP_(2) has the effect of supplying zinc.Thus,TGP_(2) is a new functional food additive with a good character and a promising future for application.

相比较而言，TGP2较TGP1光稳定性好，受H2O2的影响小，于色素溶液中添加维生素C更有助于TGP2的稳定；同时TGP2兼有补锌的作用，因而茶绿色素TGP2确为一种性能十分优良，且具有广阔应用前景的新型功能性食品添加剂。

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