灰罐：在水工建筑行业指的是在拌和系统内用于存储粉状材料的罐状存储设备。它是粉煤灰罐、水泥罐等的泛称。
“灰罐”是一战中对付潜艇的主要武器。
"Ash cans" were the main weapon to force a submarine to surface in WWI.
电除尘器的下端口与中间灰罐通过空气斜槽连接；
The middle ash can is connected with the mixed humidifier used for spray humidification through a pipe.
花35美元，获得六罐精选红酒或一份灰雁伏特加和Cristallino(译注：酒类品牌)香槟的礼品套装(由位于马里兰的那家我们之前品尝苏格兰威士忌的酒店提供)。
35 for a Six Pack of Selected Wines or a Grey Goose and Cristallino Gift Set at the same liquor store in Maryland that sold us the horrible scotch tasting.
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