tight hole 中文意思是什麼
tight hole
解釋
井徑縮小的井眼-
We produce fine holes in metals, including difficult - to - grind materials beginning with hardened steel and titanium, as well as super - hard materials, through the use of small - hole discharge processing, which produces a beautiful finish while allowing us to meet tight delivery schedules
本公司是專業微孔加工企業，利用微孔放電加工技術，對淬火鋼等鈦鋼超鋼等難磨削材料進行精密深孔加工。 -
Abstract : tight trips often occur for hole undergauge during drilling in east sichuan oilfield. the paper analysis the causes of hole undergauge, proposes preventive and treatment measures which are to optimize design from geologic structure features, to use suitable fluid column pressure, to select different drilling fluid types, to adopt advanced drilling technology and perfect field technical management. therefore, good economic benefit will be obtained
文摘:川東構造在鉆探作業中因井眼縮徑造成起下鉆的阻卡時有發生，文中對造成井眼縮小的原因進行分析並劃分為五類因素，提出應在地質構造特徵方面優化設計，採用合適的液柱壓力，選擇不同的鉆井液類型，使用先進的鉆井工藝和完善現場技術管理等措施進行預防和處理，將取得重大的經濟效益。 -
Changes in rotary torque ( and possible tight hole and drag on connections )
轉盤扭矩有變化（也可能是遇卡或接單根時的摩阻） 。 -
The nancha suspending - gay bridge of the changjiang road - bridge in jiangshu runyang, with a main span of 1490m, ranks first in china, third in the world. the north rivets, only 250m from the main stream of changjiang, have a tight liaison with the waterpower of it. especially, in this area, the face of rocks undulates a lot and exist fault - fabric. the soil there has apparent difference with the trend of water. the base - hole of north rivets can be named a super - deep one, with a 60m length, 50m widths, and 48m depths. the fence of the base takes advantages of the rectangular underground continuous wall structure and succeeds
江蘇潤揚長江公路大橋南汊懸索橋，主跨1490m ，居中國第一，世界第三。該橋的北錨碇距長江幹流僅250m ，與長江水力聯系密切，錨碇區水文、地質情況復雜，表層淤泥質土及松軟粘土層較厚，基巖頂面起伏較大，且存在斷裂構造，土層具明顯的流變特性。北錨碇基坑為長60m 、寬50m 、深48m的矩形超深基坑，其基礎圍護在國內首次採用矩形地下連續墻結構，並獲得成功。 -
If tight hole, repeat wiper trip
如果井眼緊 -
Drill a hole in the centre of the blank pcb so that the copper pipe is a tight fit in the hole
在空白電路板的中間鉆一個小孔，使得銅管正好緊緊地固定在中間。
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