directional control characteristics 中文意思是什麼
directional control characteristics
解釋
方向操縱特性- directional : adj. 1. 方向的。2. 【無線電】指向的，定向的。
- control : n 1 支配，管理，管制，統制，控制；監督。2 抑制（力）；壓制，節制，拘束；【農業】防治。3 檢查；核...
- characteristics : 產品性能描述
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Associated with a practical example of pipeline crossing with directional drilling technique in yizheng - changling crude oil pipeline, this paper analyzes the characteristics of crossing through rocky stratum with directional drilling, deliberates the stratum status, drilling machine selection, drilling tool assembly, direction control, mud control ; drilling process as well as emergency dealing scenarios at the stages of guiding - hole drilling, aperture expanding and back - towing
摘要結合儀征長嶺原油管道洪湖長江定向鉆穿越工程實例，分析了管道定向鉆穿越長距離巖石層的特點，論述了定向鉆穿越巖石層的地層狀況、鉆具組合、控向措施、泥漿控制、鉆進工藝以及導向孔鉆進、擴孔、回拖階段的應急預案，針對在鉆導向孔過程中因泥漿壓力高、信號線多次出現被高壓泥漿沖壞、造成控向信號不穩定甚至中斷的情況，對信號線的安裝提出了改進措施。 -
The next key around to control the tempo of all above and below can be divided into four manifestations, let the direction of your keys and directional characteristics
上下左右鍵進行控制，所有的節奏可以分為上下左右四種表現形式，讓出現的方向和你的按鍵方向吻合。
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