First,brine is reacted with ammonium hydrocarbonate to obtain the sodium hydrocarbonate and the ammonium chloride solution,and then filtrated.
水制备纯碱分两步进行,第一步用水、碳氢铵反应得到碳氢钠微溶析出和氯化铵溶液,过滤。
First,brine is reacted with ammonium hydrocarbonate to obtain the sodium hydrocarbonate and the ammonium chloride solution,and then filtrated.
水制备纯碱分两步进行,第一步用水、碳氢铵反应得到碳氢钠微溶析出和氯化铵溶液,过滤。
It should be the floweriness blooms from the monochrome, the cleanness filtrated through the multi-colors, the genuine beauty grows in the nihility.
是要叫这黑白研出绚烂,洗出明净,虚空生出真美的。
The results show that:The nephelometery is a kind of widely useful,rapid and reliable to measure the concentration of fines in the filtrate of DDT.
结果表明,通过测定滤液的浊度来推算滤液中细小组分浓度的方法(浊度法)是一种适用范围广、快速、准确的测定方法。
Both the filtrate and the dialyzate of agave pollen can activate the enzyme, thus proving that there was activating substance of the thiol group in agave pollen.
无论是剑麻花粉的滤液还是透析液,都能使剑麻蛋白酶激活,证实剑麻花粉中含有巯基激活物质。
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