查询词典 sulfite

Some influential factors on soft nickel sulfamate plating and soft gold sulfite plating process and measures of improving adhesion between the nickel barrier and the gold conductor layer have been analyzed.By means of our experiments and product applications,it has been shown that the Ni/Au platingtechnology for the soft PTFE copper clad laminate...

通过实验及应用证明了与直接镀金工艺相比，在软基材PTFE敷铜箔板上镀Ni／Au工艺能大大提高微波电路的可焊性、高温稳定性和长期可靠性，并且用其所制作的微波器件的高频性能也优于直接镀金工业。

The results of spectrum analysis show that, the absorption of sulfite cooking liquor during 460nm-580nm visible wavelength mainly comes from sulphonated lignin while saccharide and water in cooking liquor has little.

通过对亚硫酸盐和硫酸盐纸浆卡伯值光谱法在线测量机理的研究发现，亚硫酸盐法蒸煮液在460nm-580nm的可见光波段内的吸收主要是来自其中的磺化木素。

Also, the type of dispersion of four gasliquid-liquid systems: air-decane-aqueous solution of sodium sulfite and surfactant, airmixture of decane and dodecene-aqueous solution of rhodium complex, ligand, and surfactant, air-mixture of decane, dodecene and tridecyl aldehyde-aqueous solution of rhodium complex, ligand and surfactant, and air-mixture of decane and dodeceneaqueous solution of trisodium salt of tri (m-sulfophenyl) phosphine, and surfactant is determined by electric conductivity.

本文采用电导率测量的方法实验研究了空气—正癸烷—亚硫酸钠和十六烷基三甲基溴化铵水溶液、空气—正癸烷和1-十二碳烯混合物—铑膦络合物催化剂和十六烷基三甲基溴化铵水溶液、空气—正癸烷、1-十二碳烯和十三醛混合物—铑膦络合物催化剂和十六烷基三甲基溴化铵水溶液、空气—正癸烷和1-十二碳烯混合物—三间磺化苯基膦三钠盐和十六烷基三甲基溴化铵水溶液四个三相体系的液液分散特性。当有机相与水相体积比分别为7／3、1／1和3／7时，前三个体系均形成水包油型分散，并有稳定的乳状液生成。

The chemical components of eucalyptus and their changes during the alkali sodium sulfite pretreatment and peroxid bleaching process had been studied by FTIR.

用傅里叶变换红外光谱法对桉木中各组分在碱性亚钠法化机浆预处理及漂白过程中的化学变化进行了研究。

Detection and enumeration of the spores of sulfite-reducing anaerobes ({Clostridia}).

还原亚硫酸盐的厌氧菌芽胞的探测和计数。

Abnormal phenomenon of BOD5 measurement of hydrogen peroxide bleaching wastewater was discussed and it was caused by the oxygen generated from decomposition of residual hydrogen peroxide in wastewater. Sodium sulfite is proposed to use for deoxidizing the residual hydrogen peroxide and the abnormal phenomenon can be eliminated effectively.

摘 要：探讨了H2O2漂白废水BOD5测定过程中的异常现象，发现废水中残余H2O2分解产生氧气是导致BOD5测定产生异常的原因，提出了加入亚硫酸钠（Na2SO3）还原废水中的残余H2O2的方法，可有效消除BOD5测定过程中的异常现象。

In the second chapter, p-hydrazino-benzenesulfonic acid was prepared by diazotizing sulfanili acid with sodium nitrite. The diazanium salt was then reduced with sodium hydrogen sulfite and acidified with sulfuric acid to give 83.4% product. After several repeated experiments, the reactant and reaction condition are determined.

由于Cy系列试剂的特殊结构使其在荧光标记方面与其他试剂相比有着显著的优点，在生物芯片和蛋白质组学方面得到了广泛的应用，因此文章综述了Cy系列试剂在DNA芯片和蛋白质组学研究中的标记方式以及应用。

Bast fibers of Edgeworthia papyrifera purchased from mainland China and the Taimali research station of TFRI were pulped with the soda process, the alkali sulfite process, and sodium carbonate liquor, respectively. The yield, the kappa number, and the defiberating ratio under various alkali charges and alkali concentrations were evaluated.

本试验以自大陆进口之三桠树皮及林业试验所太麻里分所栽植之三桠树皮进行制浆试验，制浆之方法有苏打法、碱性亚硫酸钠法及以碳酸钠为蒸煮药品等三种，并由用碱量及药液浓度之变化来探讨三桠树皮之收率、卡巴值及解纤率。

Shipped products have to do: Safety matches, barium nitrate, sodium nitrate, sodium sulfite, cleaning agents, polyurethane, trichloroisocyanuric acid, sulfur dioxide, etc.

运做的产品有：安全火柴，硝酸钡，硝酸钠，亚硫酸钠，清洗剂，聚氨酯，三氯异氰尿酸，二氧化硫尿等等产品。

In this paper, cuprous chloride was prepared by sulfite-reduction method with copper sulphate,which was obtained from copper-containing plating wastewater treatment.

研究了利用处理含铜电镀废水得到的硫酸铜，采用亚硫酸盐还原法制备氯化亚铜。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。