tunnelling
名词 n.
动词 v.
英文释义
名词 n.
- Alternative form of tunneling.
动词 v.
-
present participle and gerund of tunnel
— As it was necessary to reconstruct the culvert close to the original position, the hazards of tunnelling through clay in an unstable condition, due to the absorption of water, had to be reduced by the application of electro-osmosis to dry out the material.
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数据来源: Wiktionary