Activity of h ion
[机] 氢离子活度
🧩 词语组成解析
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
ion
['aiən]
n. <物>离子;
🗣️ 情景例句
Did you sleep soundly last night.
你昨晚睡得好吗？
What time does the train for Boston leaves?
去波士顿的火车几点开？
This is a good photograph.Who are these people?
这是一张很好的照片。这些人是谁。