annulus

A sonic tool used in a pumping well to determine the distance to the top of the fluid in an annulus during pumping and shut in.
在抽油井的抽油过程中和关井期间测量环空内液面高度的一种声波测井方法。
In the age of the Internet, network marketing will become a hospital marketing strategy of important one annulus.
在互联网时代，网络营销必将成为医院市场营销战略中的重要一环。
At present, the methods of isotope tracer and turbine flowmeter are universally used for testing annulus well in home oilfield.
同位素示踪法和涡轮流量计法是目前国内各油田普遍采用的环空测井方法。
A completion component, generally included in the lower assembly near the packer, that allows communication between the tubing and annulus.
一种完井部件。它通常包括在接近封隔器的下部组合中。它用来提供在油管与环空之间的连通。
The frame, in accordance with this invention, defines a picture frame having a central opening defined by an annulus.
根据本发明的框架限定有一个中央开口的画框环形。
The disc consisted of an incompressible nucleus surrounded by nonlinear annulus fibers embedded in a solid ground substance.
该光盘由一个不可核周围非线性环纤维中嵌入了坚实的地面物质。
Hence the Sun appears as a very bright ring, or annulus, surrounding the outline of the Moon.
因此，太阳似乎是一个非常光明的戒指，或环，周围的轮廓月球。
To breeding door will tell, whether does the product have sale particularly crucial, also be to ensure of income important one annulus.
对于养殖户来讲，产品是否有销路尤为要害，也是确保收入的重要一环。
Can produce two jobs again later, make I must cancel the company, again annulus for polished rod commander.
可后来又发生了两件事，使我不得不把公司注销掉，又再次轮为光杆司令。
The radiographic signs of ankylosing spondylitis are due to enthesitis, particularly of the annulus fibrous.
强直性脊柱炎的影像学特征是来源于附着点炎，尤其是在纤维环。