Tunneling
['tʌnəlɪŋ]
解釋/意思:
(p. pr. & vb. n.) of Tunnel
手打:南希
例句/造句/用法:
- Tunneling under rivers presents many more difficulties than driving through the hardest rock. Edward W. Byrn. 十九世紀發明進展.
- His experiments made him doubtful of the possibility of running such railroads, unless a great amount of very expensive tunneling and grading were first done. 魯伯特·薩金特·荷蘭. 歷史性發明.
- It is believed that this was the first time that soft material met with in tunneling under a river has been solidified by means of fire. 佚名. 神奇的知識之書.
- An important engineering invention for tunneling through silt or soft soil is the so-called shield. Edward W. Byrn. 十九世紀發明進展.
- In tunneling under the river, nearly every conceivable combination of rocks and soils were met, but for the most part the material was silt. 佚名. 神奇的知識之書.
手打:南希