Open your eyes, feel the cracks in the window of that beam drilling to bring the warmth of the sun, this world really beautiful!
睁开眼睛，感受着从窗户缝隙中钻进来的那束阳光所带来的温暖，这世界真美好！
In the washing Windows process, downhole drilling of violent vibration seriously affect the quality of construction, to further window is difficult.
在侧钻开窗过程中，井下钻具的剧烈振动严重影响开窗质量，给进一步施工带来困难。
While under the condition of high temperature and high pressure, the safe drilling in thin safe density window is the technical difficulty that can not be solved well around the world.
随着深部油气藏的勘探和开发，深井及超深井的数量大幅度增加，而深井超深井在高温高压条件下，窄安全密度窗口内的安全钻井是当前国内外都未能很好地解决的重大技术难题。
Abstract: objective: to compare the hypertension cerebral hemorrhage minimally invasive drilling drainage and the clinical effect of small bone window craniotomy hematoma removal.
摘要：目的：对比高血压脑出血微创钻孔引流与小骨窗开颅血肿清除术的临床效果。
The research cutting window sidetrack drilling cementing quality has important significance for improving oil development result, extending the production life of oil well and reducing the cost.
研究开窗侧钻井固井质量，对提高油气开发效果、延长油井的使用寿命、降低成本，具有重要意义。
Slim hole sidetracking and window milling technology is one of the effective ways to cut down the comprehensive drilling cost and improve oil production rate.
应用小井眼开窗侧钻技术是降低钻井综合成本，提高原油产量的重要途径之一。
This technology can do repetition measurement of well bore track, determine drilling direction and window cutting direction of sidetrack well and so on.
该技术可用于井身轨迹复测、钻井定向和侧钻井开窗定向等。
The location of vestibular window and the round window is relatively stable, so the stapes head can be used as a reference for drilling scala tympani.
前庭窗与圆窗的位置关系相对稳定，因此镫骨头（砧镫关节）可作为参照标志来确定鼓阶钻孔的位置。
The location of vestibular window and the round window is relatively stable, so the stapes head can be used as a reference for drilling scala tympani.
前庭窗与圆窗的位置关系相对稳定，因此镫骨头（砧镫关节）可作为参照标志来确定鼓阶钻孔的位置。
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