I spied a baby adder slithering away.

我发一条小蝰蛇蜿蜒爬走了。

Two-stage cold coal gas station consists of two-stage coal gasifier, electric detarrer, indirect cooler, electric deoiler, air cooler and coal gas pressure adder.

两段式冷煤气站是由两段式煤气发、捕焦油器、间接冷却器、捕轻油器、风冷器及煤气加压机组成。