查询词典 sulphuric acid

The corrosion performance of AISI 304 stainless steel in sulphuric acid solution was greatly improved by copper coatings.

很大地改进了AISI 304不锈钢腐蚀表现在硫酸解答的 by铜涂层。

The sulphuric acid has eaten into these steel pipes.

硫酸已腐蚀了这些钢管。

The TLC of them were concordance.They presented the same color fluorescence in the corresponding position at the ultraviolet light(365nm). After the vanillic aldehyde sulphuric acid ethanol solution developed, violet color spots presented at the same place. Reference substance of Polysaccharide presented violet color ,but in the corresponding position the crude and the prepared didn't show the spots .

生远志正丁醇部位色谱和蜜远志正丁醇部位色谱基本一致：紫外灯（365 nm）下二者在相应位置呈相同颜色荧光，香草醛硫酸乙醇溶液显色后二者在相应位置的几个斑点均呈紫罗兰色，且远志皂苷元对照品斑点呈紫罗兰色，而在与其相应位置生远志供试品和蜜远志供试品均未检视到相应斑点。

The TLC of them were concordance.They presented the same color fluorescence in the corresponding position at the ultraviolet light(365nm). After the vanillic aldehyde sulphuric acid ethanol solution developed, violet color spots presented at the same place.

生远志正丁醇部位色谱和蜜远志正丁醇部位色谱基本一致：紫外灯（365 nm）下二者在相应位置呈相同颜色荧光，香草醛硫酸乙醇溶液显色后二者在相应位置的几个斑点均呈紫罗兰色，且远志皂苷元对照品斑点呈紫罗兰色，而在与其相应位置生远志供试品和蜜远志供试品均未检视到相应斑点。

The paper describes bauxite positive flotation desilication process and the agglomeration mechanism of sulphuric acid and aluminum sulphate.

介绍了铝土矿正浮选脱硅生产工艺流程，阐述了硫酸和硫酸铝的团聚机理，通过工业对比试验，证明了在精矿脱水工艺中应用硫酸比硫酸铝具有更优越的技术经济效果。

By pilot tests,the sulphuric acid shows more techno-economic results than aluminum sulphate aluminum in the dewatering process of concentrate.

介绍了铝土矿正浮选脱硅生产工艺流程，阐述了硫酸和硫酸铝的团聚机理，通过工业对比试验，证明了在精矿脱水工艺中应用硫酸比硫酸铝具有更优越的技术经济效果。

The effects of ammonium molybdate,zinc sulfate,sulphuric acid manganese in different concentration on membrane permeability, the content of MDA and the content Chlorophyll of muskmelon seedlings were studied.

用不同浓度的钼酸铵、硫酸锌、硫酸锰处理甜瓜幼苗，探讨其对甜瓜幼苗细胞膜相对透性、丙二醛含量、叶绿素含量等生理特性的影响。

Copper smelter ; sulphuric acid plant ; retrofit

铜冶炼烟气；硫酸生产；技术改造

The Corrosive wear properties of Ni60 +20%WC alloy coatings by laser cladded process have been measured and wear-corrosion surface morphologies in diffirent impact velocities and sulphuric-acid concentrations have been studied by SEM.

测定了Ni60＋20％WC合金激光熔敷层的腐蚀磨损性能，用扫描电镜研究了冲击速度和介质浓度对腐蚀磨损表面形貌的影响。

The results show that the BST is a nice nitrogenous fertilizer resources and to some extents,equal and superior to traditional nitrogenous fertilizer urea and sulphuric acid ammonia.

结果表明，BST是很好的氮肥资源，等同于或某种程度上优于尿素和硫酸铵。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。