Water, acrylonitrile and the galactomannan gum are added to a reactor with an alkali metal hydroxide.

The nitrocellulose filters are then placed on wet filter paper containing alkali, which denatures the DNA.

再将硝酸纤维素滤膜置于含碱的湿滤纸上, 碱的作用是使DNA变性.

Carbon dioxide is reported to absorb primarily onto surface alkali or alkali-containing constituents.

据报道CO2吸附主要在碱性表面或含碱成分的表面上.

The goods are rinsed with hot and cold water to remove residual alkali.

产品用热水和冷水漂洗,以除去残留的碱.

Cyclization occurs readily with dilute alkali.

遇到稀碱就容易环化.

The acid and alkali are combined into salt.

酸与碱化合成盐.

The alkali halides can be grown into large crystals of excellent transparency.

硷金属卤化物能生长成具有优良透明性的大晶体.

It was surprising when the alkali spectra showed unmistakable doublets.

当碱金属光谱显示出不容怀疑的双线结构时,是令人惊奇的.

Such detergents do not yellow the wool as alkali tends to do.

这种洗涤剂不会象碱那样使羊毛发黄.

The valence atom of an alkali-metal atom has two states.

碱金属原子的价原子具有两种能态.

Alkali metals ( Li, Na, K and Cs ) 12-tungstophosphates were prepared and characterized byand XRD techniques.

以 鸽 磷酸为原料制备了锂 、 钠 、 钾、铯的鸽磷酸碱金属盐.

Francium is the densest of the Alkali Metals and also radioactive.

钫是碱金属中密度最大的,具有放射性.

The hydroxides of the alkali metals are strongly alkaline.

碱性金属的氢氧化物有很强的碱性.

All the alkali metals have a singles-electron outside a closed shell.

换句话说,整个能级谱恰好就像是上下颠倒的碱金属能级谱一样.

The free alkali metals react immediately with water to liberate hydrogen.

游离的碱金属直接和水中作用,放出氢气.

All the alkali metals have a single s-electron outside a closed shell.

所有的碱金属都在闭合壳层之外有一单个S电子.

The acid-resistance, alkali-resistance , anti-caustic and weather ability is more excellent than others '.

产品耐酸碱度 、 抗 腐蚀性能 、 耐候性更为优越.

Physical Properties: Hard tightness, High density, little radiation, high polished degree, Anti-acid and alkali resistance etc.

物理性能: 硬密封性, 高密度, 小辐射, 高抛光度, 反 酸和耐碱性等.

Purpose: The equipment is widely used for deteming the alkali-resistance properties of silicon-aluminum refractories .

用途: 该设备用于 硅铝 质耐火浇注料耐碱性的测定.

A function-based anti-wool , alkali resistance, corrosion resistance, noise, anti-tidal water, better stability and mild sexual.

基功能具有防虫蛀 、 耐碱 、 防腐 、 隔音 、 防潮耐水 、 有较好的稳定性和耐侯性.

Carbon coating property Strong adhesive force, better acid alkali resistance, salt resistance, corrosion resistance and durable.

该漆附着力极好,耐酸、耐碱 、 耐盐, 耐腐蚀性佳,耐久性好.