There is hand winch in the back of speaker truss , Line speaker can easily be hanging .
喇叭架背部配有手摇器,可以轻松将线阵音响吊上空中。
The parameters of suspension roof support were determined based on hanging action with a bolt-wire or cable truss.
应用锚杆兜吊和锚索悬吊两种作用设计了锚杆支护参数。
The parameters of suspension roof support were determined based on hanging action with a bolt-wire or cable truss.
应用锚杆兜吊和锚索悬吊两种作用设计了锚杆支护参数。
应用推荐