亚硫酸处理

The optimum process conditions of treating chromium-contained wastewater with low concentration and the optimum reflux rate of settled bottom stream of flocculate are obtained.

以长沙铬盐厂的含铬废水为试验水样，研究了用七水硫酸铁、亚硫酸氢钠、铁屑 3种还原剂达标处理较低浓度含铬废水的适宜工艺条件和悬浮液絮凝体沉降底流的最佳回流率。

Bisulfite modification: A total of 1μg of genomic DNA, obtained from culture cells or tissues, was modified by sodium bisulfite to convert unmethylated cytosines to uracils.

2亚硫酸氢钠修饰取1μg上述DNA经亚硫酸氢钠处理，将非甲基化的胞嘧啶转变为尿嘧啶，而甲基化的胞嘧啶保持不变。

As the problem in low concentration SO_2 exhaust disposal processes through spraying milk of lime in environment protection plant of Lead and Tin metallurgy factory,the technology reform has been done.

针对铅锑冶炼厂环保车间石灰乳喷淋处理低浓度SO2烟气存在的问题，对环保车间进行了技术改造，采用碳酸氢氨水溶液代替石灰乳喷淋处理低浓度SO2烟气，副产亚硫酸氨产品，取得了良好的效果。

After treated by i.p. sulfur dioxide derivatives (sodium hydrosulfite and sodium sulfite 3∶1,mol·L -1 / mol·L -1 ) or/and vitamin C, the activities of CAT, SOD and the level of lipid peroxidationin human red blood cells were investigated.

以SO2体内衍生物-亚硫酸盐和亚硫酸氢盐(分子比为3∶1)及抗坏血酸单独或同时处理人血红细胞，并测定红细胞过氧化氢酶、超氧化物歧化酶活性及脂质过氧化水平。

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。

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。