查询词典 alkali

The results show that there are serious water phase trapping, serious alkali sensibility, serious acidulous sensibility, middle to serious stress sensibility in this area.

研究区具有强盐敏、强碱敏、强酸敏，中-强应力敏感性、强水相圈闭损害。

The plant body tends to form great deal of aerenchyma under the saline-alkali habitat. The aerenchyma in three kinds of plants comes into being near the main vein and in spongy mesophyll of the leaf, in parenchyma tissue around of vascular bundle of the petiole, and in parenchyma tissue of cortex of the stem.

盐碱诱导下植物体趋向形成大量的通气组织，以对抗盐碱生境下的乏氧环境，三种植物的通气组织一般存在于叶片的主脉附近，叶柄的维管束周围的薄壁组织中，以及茎的皮层薄壁细胞之中。

The super light water repellent hard afwillite type calcium silicate thermal insulation product is successfully made from quart powder and lime as raw materials, alkali-resistant glass fiber, few of paper fiber and additives by means of dynamic water heating synthesis at pilot plant.

利用石英粉、石灰为主要原料，掺加耐碱玻纤及少量纸纤维，添加少量外加剂，采用动态水热合成法，中试生产成功超轻憎水硬硅钙石型硅酸钙绝热制品。

Because the olefinic hydroxyl groups are linked with olefinic carbon, so it can ionize H〓 ion and present the properties of weak acid, and so the olefinic hydroxyl groups change into the structure of alcoholate in the presence of alkali , but the structure of alcoholate may change into the structure of olefine alcohol again, after the Na〓 ions is removed, or when the pH value of its solution turn into pH. Because the structure of the olefine alcohol is not stable and is easy to isomerizate to become the structure of olefine ketone, so there appear the ca. 1730cm〓 C=O absorption peak in the IR spectra of the products.

明确指出了在C〓、C〓富勒醇中存在烯碳羟基与叔碳羟基等二类羟基，烯碳羟基由于与一个共轭体系相连，从而其羟基可以离解而呈现出弱酸的性质，因而在碱性条件下易形成烯醇钠盐的结构，当除去钠离子后或在酸性溶液中，烯醇钠盐结构转变为烯醇结构，但由于烯醇结构不如烯酮结构稳定，从而形成烯醇结构后，烯醇结构异构化为烯酮结构，因此在其产物的IR谱图上出现1730cm〓附近的C=0吸收信号。

The results show that all these three factors are helpful to increase the alcoholysis degree,but the influence from the amount of alkali contributes the greatest,and the influence from the reaction temperature is the least.

结果表明，三种参数的增加都会使产物的醇解度增加，其中碱物质的量比的影响最大，其次是反应时间，反应温度对产物醇解度的影响最小，几种参数对醇解反应的影响是交互的，当其中一种参数发生变化时，其它几种参数的影响能力会随之发生改变。

The measurement shows that the pH of water in all of the aquaculture ponds was high and presented alkalescency, even alkali in some month.

可持续发展能值指标很低，鳝鱼养殖0.02，乌头、鲡鱼混合养殖0.04，鲈鱼养殖0.07。

You see, sodium is actually an alkali metal.

你应该知道，钠是一种碱金属。

The effect factors of alkali metal migration and their reactions in the furnace were analyzed.

分析了影响碱金属迁移的因素及释放出来的气态碱金属在炉内的反应过程。

Moreover, the effects of alkali metal carbonate promoters and the solvents were investigated at the same time.

考察了碱金属碳酸盐类助剂和溶剂对反应活性的影响。

The analysis of alkali metal and heavy metal contents in the gas is made.

进行了气体中碱金属和重金属含量分析。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷