過輪下鉆 的英文怎麼說
中文拼音 [guòlúnxiàzhēn]
過輪下鉆
英文
bottom fourth jewel- 過 : 過Ⅰ動詞[口語] (超越) go beyond the limit; undue; excessiveⅡ名詞(姓氏) a surname
- 輪 : Ⅰ名1 (輪子) wheel 2 (像輪子的東西) wheel like object; ring; disc 3 (輪船) steamer; steamboa...
- 下 : 下動詞1. (用在動詞后,表示由高處到低處) 2. (用在動詞后, 表示有空間, 能容納) 3. (用在動詞后, 表示動作的完成或結果)
- 鉆 : 鉆Ⅰ名詞1. (打眼用的工具) drill; auger 2. (指鉆石) diamond; jewel Ⅱ動詞(用尖物在另一物體上轉動) drill; bore
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Among the designs left by leonardo da vinci almost 500 years ago ? with notes written backward to be read with a mirror ? were the parachute , life jacket , water pump , swim fins , well digger , paddle - wheel boat , horseless carriage , sprocketchain , steam gun , water turbine , lens - grinding0 machine , shrapnel , machine gun , airplane , helicopter , submarine , and mass production
近500年前列奧納多?達?芬奇留下的許多設計稿? ?即須通過鏡子才能讀懂的反著寫的筆記,其中有降落傘、救生衣、水泵、游泳腳蹼、鉆井機、明輪機、無馬馬車、扣齒鏈、蒸汽槍、水輪機、磨鏡片機、子母彈、機關槍、飛機、直升飛機、潛水艇和成批生產的設計。Bottom fourth jewel
過輪下鉆In chapter six, based on the preceding chapters " research, the practicality of the full scale dr i 11 ing simulating test device has been tested by the debugging and the performance test. under simulating drilling conditions, the rock mechanical properties and the bits " dynamical tests are analyzed and set forth specifically. at the same time the effect of bottom pressure difference on the oil field exploration and development has been discussed
第六章在前述分析研究的基礎上,通過對模擬裝置的系統調試及性能測試,驗證了全尺寸鉆井模擬裝置的實用性,在鉆井模擬條件下對巖石的機械性質、牙輪鉆頭動態測試給予了具體的分析闡述,同時還分析探討了井底壓差對油田勘探開發的影illb ,並且為宋深101井的實際施工作業提供了非常有價值的指導參數。
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