[温泉]水温超过20℃的泉.也有把水温超过当地平均气温的泉称为“温泉”.温泉的水多半来自地壳深处,一般常是~#矿泉.[矿泉]矿水的天然露头.详见“矿水”.[间歇泉]周期性喷发的热泉.大多每隔一定时间喷出一次热水柱或汽柱,可高达数十米,类似小型火山喷发.间歇泉在近代火山活动区分布较多,是寻找地热田的一种标志.在我国西藏日喀则地区分布有间歇泉.[水井]以开采地下水为目的而钻凿或开挖的井.通常分为两类:一类为管井,俗称“深井”、“机井”,深度较大,用机器钻凿,水井内安装金属的、硬质塑料的或混凝土的井管,用水泵抽水.另一类为简井,俗称“浅井”、“土井”, [Hot spring] A spring whose water temperature is more than 20 ° C. There are also springs called hot springs whose water temperature exceeds the local average temperature. Most hot springs come from the depths of the earth’s crust and are usually ~ # mineral springs. See the “mineral water.” [Geyser] Hot springs that periodically erupt, most often at intervals of time to spray hot water column or column, up to tens of meters, similar to a small volcanic eruption. Geysers in modern volcanic activity There are more geographically distributed geothermal fields, and geysers are distributed in the Shigatse area of ​​Tibet in our country. [Wells] Wells drilled or excavated for the purpose of exploiting groundwater are usually divided into two types: one is Pipe wells, commonly known as “deep wells,” “machine wells,” are of greater depth, are drilled by machines, and metal, hard plastic or concrete well tubes are installed in the wells and are pumped by water pumps. “,” Doi ",