Objective: To investigate the feasibility and effect of treating achalasia of the cardia by dilating single balloon and double balloon gradually.

目的：探讨使用单球囊到双球囊逐渐扩张治疗贲门失弛缓症的可行性，及其治疗效果。

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It analyzes the recent fault for the second-stage double acting slide valve, and summarizes the methods of judging and treating the common fault for electro-hydraulic actuator.

并结合实际情况，对近几次二再双动滑阀发生的故障进行分析，总结了电液执行机构常见故障的判断和处理方法。

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Conclusion Single-bore or double-bore drainage is effective in treating chronic subdural hematoma.

结论单孔或双孔钻颅血肿引流是治疗慢性硬膜下血肿的有效方法。

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"We're treating this as a double homicide, " said FBI spokesman Eric Gonzalez.

CNN: Feds investigate Alaska Coast Guard shooting deaths

"We're treating this as a double homicide, " said FBI spokesman Eric Gonzalez, who noted that the slayings occurred inside the Coast Guard Communications Station Kodiak.

CNN: Two Coast Guard members shot dead on Alaskan island