underdrag
下侧牵引
发音
US
词形变化
underdrags
复数
underdrags
underdrags
三单
underdragging
现在分词
underdragged
过去式
underdragged
过去分词
释义与例句
n.
-
1.
The tensile stress exerted by an overthrust rock mass upon overlying rocks which themselves are not under compressive thrusting stress and therefore tend to be stretched and broken by normal faulting.
不可数 地质
v.
-
1.
To exert pull on the underside of (something).
及物 -
2.
To undergo a pull from the underside.
不及物
词源
From under- + drag.
来源：wiktionary