弧形洞 的英文怎麼說

中文拼音 [húxíngdòng]
弧形洞 英文
arched opening
  • 弧 : 名詞1. [數學] （圓周的任意一段） arc2. （古代指弓） bow
  • 洞 : 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
  • 弧形 : arc; curve弧形避雷器 arc-arrester; 弧形槽 arc wall; 弧形構造 arc structure; 弧形閘門 [水文] radial gate
  1. The main work is done with the help of model experiment. in the flood - relief experiment, the flood carrying capacity of spillway tunnel is checked. in the hydraulic experiment of the diversion power conduit system, the followings are studied : the flow condition and fluctuation in the surge chamber, the distribution of flow velocity before the rack in the surge shaft, the amplitude of stage in the quick gate bay etc. the test step, content and results of different proposals are introduced in details

    本項優化試驗研究的目的主要在於，通過泄洪系統整體水力學試驗，校核泄洪洞的泄流能力；通過發電引水系統整體水力學試驗，研究調壓井內水流流態和水位波動情況、調壓井內攔污柵前流速分佈情況；確定快速閘門井內水位波動幅度；試驗確定壓力管道水擊壓力穿井系數以及泄洪洞弧形門處的水壓力。
  2. In this paper it first suggests 3 types of brand - new portal to be investigated in the light of landscaping and environment nursing, namely up or down bamboo - truncating portal and arc retaining wall portal

    本論文首先從景觀和環保意義出發提出了要研究的三種新型洞門型式：正削竹式、倒削竹式洞門和弧形擋墻洞門。
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