hand air pump

• 手动气泵,手动气筒

hand air pump的用法和样例：

例句

1. With the new trap, the rat catcher still forces smoke into the burrow.But the trap is attached to an air pump operated by hand.
   有了这种新型捕鼠器，捕鼠人采用的仍然是把烟输送到鼠洞里的方法，但是，新型捕鼠器与一种手动气泵相连。