shallow shaft的用法和样例：
例句
- This revolution was primarily a dry farming operation with springs and shallow hand-dug wells supplying domestic needs.
这次革命主要是旱田耕作而以泉水和人工开挖浅井提供生活用水。 - Abstract Fluid inertia effects increase equipment loading and reduce efficiency in high rate shallow wells with high water production.
在含水率较高的大排量浅井中，流体的惯性效应使设备负荷增加，并降低了泵效。
