horizontal rib横肋horizontaladj.水平的；横的n.水平线；水平面horizontal flyback transformer水平回扫变压器horizontal additional pressure水平附加压力horizontal damp-proof course水平防潮层horizontal retort distillation平罐蒸馏horizontal positioning control水平位置调节horizontal gradient of gravity重力水平梯度horizontal convergence circuit水平会聚电路,行会聚电路horizontal keystone correction水平梯形畸变校正horizontal oil-firing boiler卧式燃油锅炉horizontal-axis wind machine水平轴风力机

1. The sludge is passed under a vacuum pump and allows the water to pass through a discharge or recirculation drain.
   用真空泵除去污泥的固体含量而该泥水则经排水渠或回流渠排出。