It is composed of casing flange, casing cross joint, wellhead valves, tubing hanger, tubing head cross joint and accessories.

这种井口装置由套管法兰、套管大四通、井口阀、油管挂、油管挂体及相关附件组成。

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This paper mainly expounds how to improve scientific management in colleges and universities so as to promote the cross joint.

本文主要阐明在高等院校中，如何改进科研管理，以促进横向联合。

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Last week, the regional Director for Africa brought together representatives from all other WHO regions to map out a joint strategy for eradication as a top, cross-regional priority for WHO.

上周，非洲区域主任召集了来自世卫组织所有其它区域的代表，以便制定联合战略，使根除工作成为世卫组织跨区域的首要重点之一。

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There, eight years ago, Berezovsky founded Logovaz, taking the giant automaker as partner and reinforcing the relationship with cross-shareholding and numerous joint ventures.

FORBES: Godfather of the Kremlin?

He spent hundreds of millions more on product development, joint ventures and computer systems to layer on and cross-sell new services.

FORBES: After the Bubble

Earlier this month, South Korea responded positively, but cautiously, to a joint agreement announced Monday between North Korea and the South's Hyundai Group to resume cross-border tourism, ease border controls and facilitate cross-border family reunions.

CNN: Two Koreas to discuss reunions for split families