The troughed ore washer is a key equipment used for desliming the bauxite ore.
槽式洗矿机是铝土矿脱泥的关键设备。
2
And provides a reliable basis for the design and study of troughed rollers of belt conveyor.
为带式输送机托辊的设计研究提供了可靠的依据。
3
Figures indicate that while sales through traditional agencies have spiked and troughed several times, online bookings held steady throughout the second half of 2008.