延迟固井技术主要用在小间隙、窄环空井眼和一些特殊井的固井工艺中。
Delayed cementing technology is mainly used for cementing slim holes, Wells with small annular space and some special Wells.
四月，绕土星运行的机器人卡西尼号土星探测器拍了这张横穿太阳系最有名的环的窄角照片。
In April, the robotic Cassini spacecraft now orbiting Saturn took this narrow-angle view looking across the Solar System's most famous rings.
这幅图像是环月轨道探测照相机(LROC)拍摄的，它包括一对窄角照相机和一个广角照相机。
This image was taken by the Lunar Reconnaissance Orbiter camera, or LROC, which consists of a pair of narrow-angle cameras and a single wide-angle camera.
在一些实际结构中，一条窄槽切入顶端活塞环的上部，其作用是充当“隔热槽”以减少达到顶端活塞环的热量。
In some application, a narrow groove is cut into the piston above the top ring to serve as a "heat dam" to reduce the amount of heat reaching the top ring.
结论：经皮颈椎间盘切吸加溶核对山羊颈椎的稳定性无影响，但可引起手术间隙变窄和手术间盘纤维环膨出。
Condclusion: the stability of the goat's cervical spine is not affected after PCD with CNL, but the procedure may cause disc space narrowing and disc bulging.
结论：经皮颈椎间盘切吸加溶核对山羊颈椎的稳定性无影响，但可引起手术间隙变窄和手术间盘纤维环膨出。
Condclusion: the stability of the goat's cervical spine is not affected after PCD with CNL, but the procedure may cause disc space narrowing and disc bulging.
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