悬挂A形架 suspension a-frame

轴向载荷A形井架 direct-thrust A-frame

A形屋架 A-shaped roof frame

a形井架 a-shaped drilling derricks ; a shaped derrick ; a-shaped derrick ; a - shaped derrick

a形框架 a-shaped frame

A形桁架 Atruss

A形井架 'A' form derrick ; A-mast

A形机架销 a-frame pin

A形构架柱 A-shaped power transformation truss-column

A形机架安装螺栓 a-frame mounting bolt