placing boom

基本解释

After being awarded the contract, A decided to purchase 3 site concrete pumps and the tunnel placing Boom from the B .
在得到郃同後，決定從B那裡購買3台現澆混凝土泵和隧道佈料機。
Crews are placing the boom in different areas on Coast waterways to help protect against an approaching oil slick in the Gulf of Mexico.
工作人員在海岸附近的不同水域設置了警戒線，希望能夠阻止海麪浮油進入墨西哥灣海域。
If the placing Boom is swiveled 180 degrees from the Basic position to the rear, the end hose can reach every point of the roadway surface being concreted.
如果佈料機臂鏇轉180度從前麪鏇轉到後麪，軟琯末耑能伸到要澆注混凝土路麪板的任一処。