Before starting test, all needle valves on test kit must be closed.
在开始检测前，检测组件上的所有针形阀都必须关闭。
The scheme have two step: open loop test and closed loop test.
设计方案分为两步：开环测试和闭环测试。
All needle valves must be closed on test kit.
检测组件上的所有针形阀都必须关闭。
The test experiments show that the closed loop control model was effective.
测试实验表明，闭环控制系统取得较好效果。
The TEST plan is closed! Special plan will be closed soon as well!
实验的计划已经结束了！特别的计划也将快被结束了！
The TEST plan is closed! Special plan will be closed soon as well!
实验的计划已经结束了！特别的计划也将快被结束了！
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