placing boom

基本解釋

After being awarded the contract, A decided to purchase 3 site concrete pumps and the tunnel placing Boom from the B .
在得到合同后，決定從B那里購買3臺現(xiàn)澆混凝土泵和隧道布料機。
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(shè)置了警戒線，希望能夠阻止海面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.
如果布料機臂旋轉(zhuǎn)180度從前面旋轉(zhuǎn)到后面，軟管末端能伸到要澆注混凝土路面板的任一處。