trenching bucket[建] 挖沟铲斗
Trenching Steed掘壕战马
trenching method掘坑覆盖法
TRENCHING EQUIPMENT开挖设备
trenching WESTBANK挖沟工作
trenching pipelayer开沟铺管机
trenching position拉沟位置
trenching mveryine挖沟机
trenching machinery开沟机械
N-COUNT（可数名词） A trench is a long narrow channel that is cut into the ground, for example, in order to lay pipes or get rid of water. 沟渠
N-COUNT（可数名词） A trench is a long narrow channel in the ground used by soldiers in order to protect themselves from the enemy. People often refer to the battlegrounds of the First World War in Northern France and Belgium as the trenches. 战壕
We fought with them in the trenches.
我们在战壕里与他们作战。