Up-loading System: Boom system, Rotary table, Slewing mechanism, Fixed turret, Landing leg. Main function: Complete the concrete delivery and placing which support the vehicle to ensure its stability.

上装组成部分：臂架系统、转台、回转机构、固定转塔、支撑支腿等。主要作用：完成混凝土的输送并支撑整车，保证其稳定性。

youdao

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，决定从B那里购买3台现浇混凝土泵和隧道布料机。

youdao

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，决定从B那里购买3台现浇混凝土泵和隧道布料机。

youdao