johnson bar中文什么意思

刹车

• johnson:    n. 1.约翰逊〔姓氏〕。 2.Sa ...
• bar:    n. 1.棒，杆，条；棒状物。 2. ...
• will johnson:    威尔

百科释义

A Johnson bar (also Johnson corrugated bar) is a type of corrugated high-carbon steel bar used to reinforce concrete. The Johnson bar was invented by A.