| 释义 |
mole-plough
[f. mole n.2 + plough n.]
A plough in which a pointed iron shoe attached to a standard is drawn along beneath the surface, making a hollow channel resembling the track of a mole, which serves as a deep drain.
1798J. Middleton View Agric. Midsx. 289 A mole plough, invented by Mr. Adam Scott, for the purpose of making hollow-drains. 1879Sir T. Wrightson in Cassell's Techn. Educ. iv. 219 First we have the mole-plough forcing its way through a tenacious clay, and leaving a hollow channel. |