短語詞組短語balance incomplete block design 平衡不完全區(qū)組設(shè)計Balance e block 底座配重partial balance incomplete block design 部分均衡不完全區(qū)組設(shè)計Steering counter balance block 平衡計數(shù)器Compressor Balance Block 壓縮機平衡塊Cone balance block 錐形平衡塊 返回 balance block