The microcomputer controlled test stand 701 adopts power stepping motor to drive the original operating valve to carry out tests.

此种微机控制701试验台，是采用功率步进电机驱动原操作阀进行试验的。

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Comments: a simple preventative maintenance program and good operating procedures can address and limit the disadvantages of this valve.

评论：一个简单的预防性的维护程序和良好的操作程序能够限制这种阀门的缺点。

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Recommended Closing Procedure: Close the cylinder valve tightly using a gloved hand. Always wearing gloves when operating cylinder valves. NEVER use wrenches or other persuaders to operate the valve.

推荐的关闭程序：用戴手套的手紧紧地关闭阀门。推荐操作钢瓶阀门时总是戴手套。禁止用扳手或其它强制性的工具来操作阀门。

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Doug Suttles, the chief operating officer for exploration and production at BP, said it had not yet given up on engaging the valve, but was considering other possible solutions.

BBC: Growing concerns over Gulf of Mexico oil leak