trench(for underground pipe line)

• [化] 管沟

英英释义

名词 trench:

1. a ditch dug as a fortification having a parapet of the excavated earth

2. a long steep-sided depression in the ocean floor

3. any long ditch cut in the ground

动词 trench:

1. impinge or infringe upon

2. fortify by surrounding with trenches

3. cut or carve deeply into

4. set, plant, or bury in a trench

5. cut a trench in, as for drainage

6. dig a trench or trenches