It provides access to a large-cross section of a well, instead of just a narrow, vertical shaft.

提供了一个大的油井截面，而不只是一个狭长竖井。

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There is no need to lift the shaft, or obtain access to the shaft ends, therefore expensive and awkward to handle lifting equipment is not required.

没有必要取消骨干，或获得轴两端，因此昂贵和尴尬的处理起重设备并不是必需的。

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The design of dual-access RAM which can realize data communication between two CPUs in main shaft controllers of magnetic suspension is introduced.

介绍了在磁悬浮的主轴控制器中实现双CPU之间数据通信的双口RAM设计。

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Hecla has also begun preparatory work for sinking of No. 4 Shaft, which is planned to access extensions to reserves, resources and additional exploration targets.

FORBES: Update:Hecla Plans To Reopen Lucky Friday Mine In 1Q; Loss Reported In 3Q

The shaft is a mile deep and the primary access to the Lucky Friday Mine.

FORBES: Hecla Officials Anticipate Clean-Up Of Mine Shaft Can Begin In Few Weeks