| 单词 |
trenchless |
| 释义 |
ˈtrenchless, a. [f. trench n. + -less.] Applied to pipe-laying and draining machinery, etc., that dispenses with the cutting of a trench.
1969[see pipe-layer]. 1971Power Farming Mar. 60/1 This is a dual-purpose trenchless drainer. 1979Daily Tel. 31 Dec. 15/5 There is the so-called trenchless machine which, in one operation, can lay the pipe without any soil being removed. |

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