ESSAR图纸注释? 11.provide low point drains in all intermittently used spent acid lines throughout the alkylation unit ,.....should not be allowed to remain stagnant in idle lines .... 为烷基化装置内所有间歇使用的废酸管线提供低点排凝,.... 废酸不许滞留于闲置管线中 。 12. barrier fluid 缓冲液/阻隔液 13 .maximize the distance of ti-5009 from refrigerant recycle mix point. 从循环冷剂混合点到ti-5009的距离尽可能最大 14. spool to allow removal of nozzle. 提供短管,以便拆卸接管 查看更多