什么是干燥罐呢?
What is a dryer?
干燥罐是安装在卡车气路系统上的一个外形像罐子的物体，它的作用和柴油、机油滤清器一样，都是起到过滤的作用，只不过前者过滤的是柴油和机油，而干燥罐过滤的则是压缩过的空气。下图是安装在气路上的干燥罐。
The drying tank is an object with the shape of a tank installed on the air system of a truck. Its function is the same as that of diesel oil and oil filter, but the former filters diesel oil and oil, while the drying tank filters compressed air. The following figure shows the drying tank installed on the gas path.