查询词典 alkalis

Isocyanates; strong acids and strong oxidisers; solutions of iron, zinc, aluminium, and alkalis.

异氰酸酯；强酸和强氧化剂；含铁、锌、铝和碱金属的溶液。

Any of a large class of sour-tasting substances whose aqueous solutions are capable of turning blue litmus indicators red, of reacting with and dissolving certain metals to form salts, and of reacting with bases or alkalis to form salts.

酸任何一类酸性的物质，它的水溶液可以使蓝色石蕊试纸变红，与金属反应或溶解金属时可形成盐，和碱反应亦可形成盐

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。