1. Where an air distribution valve manifold is used and its air sub-header shutoff valve is not accessible from the manifold, a shutoff valve at the manifold shall be provided. 如果使用了空气分布阀门集管，其空气分支总管切断阀不应通过此集管，而应为集管安装切断阀。
2. Where an air distribution valve manifold is used and its air sub-header shutoff valve is not accessible from the manifold, a shutoff valve at the manifold shall be provided. 如果使用了空气分布阀门集管，其空气分支总管切断阀不应通过此集管，而应为集管安装切断阀。
3. This paper discusses the Almost Complex Structure on Product Almost Complex Manifold, and some properties on Product Symplectic Manifold are discussed. 文章讨论了乘积近复流形的近复结构，及乘积辛流形的若干性质。
4. Check that high and low side valves, if provided on meter manifold and equalizing valve on meter manifold are open. 检查仪表集管上是否提供有高、低端阀，以及仪表集管上的平衡阀是否打开。
5. Check that high and low side valves, if provided on meter manifold and equalizing valve on meter manifold are open. 检查仪表集管上是否提供有高、低端阀，以及仪表集管上的平衡阀是否打开。
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