超前導洞 的英文怎麼說

中文拼音 [chāoqiándǎodòng]
超前導洞 英文
pilotheading
  • : Ⅰ動詞1 (越過; 高出) exceed; surpass; overtake 2 (在某個范圍以外; 不受限制) transcend; go beyo...
  • : Ⅰ名詞1 (在正面的) front 2 (次序在先的) first; top 3 (過去的; 較早的) ago; before; preceding...
  • : 動詞1. (引導) lead; guide 2. (傳導) transmit; conduct 3. (開導) instruct; teach; give guidance to
  • : Ⅰ名詞(物體上穿通的或凹入較深的部分; 窟窿; 洞穴) hole; cavity Ⅱ形容詞(深遠; 透徹) profound; thorough; clear
  1. On the basis of model test, a better construction method under pre - prop for the surrounding rock i, ii, iii, named whole section excavation with heading in moderate degree and that with center heading and center partition first, then with two sides heading, is put forward

    在模型試驗的基礎上,提出了、 、類圍巖隧道在預支護下的優化施工方法,即下適度全斷面開挖與先行中及中隔墻、其次兩側下適度全斷面開挖。
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