查询词典 alkalis

Both food and alkalis relieve the pain initally,although relief is greater in a duodenal than in agastric ulcer.

在发病的最初阶段，由于食物和碱性物质的作用，患者的疼痛症状可得到减轻，而且十二指肠溃疡比胃溃疡的减痛效果更好。

The main reason: too long, or is affected by the activities of acids, alkalis, sulfur and other chemical substances of erosion and chromotropic, and the other color ink series.

主要原因：调和时间过长，受氧化作用或受酸、碱、硫等化学物质的侵蚀而变色，与其他墨色串色。

In the granites and related rocks the alkalis are, of course, noticeably in excess of the femic constituents.

在花岗岩及有关的岩石中，碱质当然显著地超过铁镁组分。

The results showed that under 200 W power, in the present of various alkalis, e.g. Na2CO3, NaF, KF, NaHCO3, and DMF-H2O (V∶V=5∶3) used as solvent, PVC-TETA-Pd could catalyze sodium tetraphenylborate to react quantificationally with iodobenzene in 20 min without inert gas protection, and all the phenyl g...

实验发现：在微波功率为200W时，在Na2CO3，NaF，KF，NaHCO3等多种碱的存在下，以DMF的水溶液(V∶V=5∶3)为溶剂，在无惰性气体保护下，PVC-TETA-Pd催化四苯硼钠与碘代苯在20min内即可定量反应，与常规加热方式相比，节省了大量时间；同时也证明了四苯硼钠的四个苯基均可参与Suzuki偶联反应；该催化剂回收再利用3次后，仍具有较高的催化活性。

The volcanic rocks consist of trachytic basalt, basaltic latite, latite and trachyte. The characteristics of this volcanic sequence are: low TiO2 and silica saturation, high alkalis, high K2O/Na2O value and Fe2O3/FeO value, high and variable Al2O3, enrichment in Rb, Sr, Ba, Zr, U, Th and LREE.

岩石硅近饱和，全碱含量（尤其是K2O）高，K2O／Na2O、Fe2O3／FeO比值大，Al2O3含量高且变化大，TiO2含量低，富集Rb、Sr、Ba、Zr、Th、U和LREE等元素，稀土配分为轻稀土富集型，锶、铅、氧等同位素显示了岩浆的幔源特征。

The chemical properties of gold ink too with acids, alkalis and sulfide contact occur to varying degrees, and that its metallic luster greatly reduced and Kim monlchamus becomes nigrescent, and second, it's easy to gold ink also with air, caused by water vapor chromotropic reactions, so that when you save the Gold Ink containers need to be tightened.

金墨的化学性质不够稳定，跟酸、碱和硫化物接触会发生不同程度的化学变化，而使它的金属光泽性大为降低，金墨就会显得发黑；其次，金墨还很容易跟空气、水蒸气发生化学反应而引起变色，因此，在保存金墨时一定要将容器密封盖严。

The chemical properties of gold ink too with acids, alkalis and sulfide contact occur to varying degrees, and that its metallic luster greatly reduced and Kim monlchamus becomes nigrescent, and second, it's easy to gold ink also with air, caused by water vapor chromotropic reactions, so that when you save the Gold Ink containers need to be tightened.

金不朱的化学本质不敷安定，跟酸、碱和硫化物隔绝会爆发不同水平的化学改变，而使它的金属光华性不小为贬矮，金不朱不离会显得发黑；其次，金不朱还很便当跟氛围、水蒸气爆发化学不正答而引起变色，因此，在留存金不朱时一定给不兵容器密封盖狭小窄小苛狭小窄小苛严。

The strong acidity, Fe(superscript 2+) and rather lower concentration of alkalis ions are responsible for voltaite, not jarosite, crystallizing from the acidic iron-bearing water.

分析认为，废液呈强酸性、溶液中存在大量Fe(上标 2+)、碱金属离子含量偏低是蒸发结晶过程中形成绿钾铁矾而不是黄钾铁矾的主要原因。

Ordinary concrete can be used in some areas, but it is subject to attack by strong acids and alkalis.

普通的混凝土可以用于一些区域，但它是受攻击支配由强的酸和碱。

Ordi-nary concrete can be used in some areas, but it is subject to attack by strong acids and alkalis.

普通的混凝土可能被使用在一些区域，但它是依于攻击由强的酸和碱。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。