表面 surface; superficies; boundary; face; rind; sheet; skin; outside; appearance 表面之词 a superficial statement; 表面价值 face value; 粗糙的表面 a rough surface; 光滑的表面 a smooth surface; 地球的表面 the surface of the earth; the face of the earth; 事物的表面 the surface of things; 表面上气壮如牛, 实际上胆小如鼠 outwardly fierce as a bull but inwardly timid as a mouse; 你不能只看事情的表面。 you must not look only at the surface of things. 他那番话不过是表面文章。 he was merely paying lip service
Introduction to general ideas in air pollution control , air pollution effects , design of wall collection devices ( gravity settlers , centrifugal separators , electrostatic precipitators ) , design of dividing collection devices ( surface filters , depth filters , scrubbers for particulate control ) , design of controlling by concentration and recovery ( condensation , adsorption , absorption ) , design of controlling by oxidation ( combustion , biological oxidation , biofiltration ) and the choosing of a control technology 本课程介绍空气污染防制概念,空气污染之影响,壁式集尘设备之设计(重力沉降室、离心分离器、静电集尘器) ,分隔集尘设备之设计(表面过滤器、深层过滤器、洗涤器) ,以浓缩回收之控制设计(冷凝、吸附、吸收) ,以氧化之控制设计(燃烧、生物氧化、生物过滤) ,以及控制技术之选择。
The technologies , including collecting the secondary fume by electrostatic precipitator on roof , restraining the open fume by dust inhibitor and treating the mobile fume by movable ventilation installation , are emphatically described . the adjustment and control of the gas flow and the pneumatic conveyance of the dust would be widely used in dust collecting system . as to the dust collector , low pressure pulse long bag filter and surface filtering technology would be a new technique in bag filter , and enlarged equipment would be the developing trend 着重讲述了屋顶除尘器、抑尘剂、移动通风槽分别是二次烟尘治理、开放性扬尘抑制、移动尘源控制的新技术措施,风量调节与控制、气力输灰技术将在除尘系统中广泛应用;在除尘设备方面,长袋低压脉冲袋式除尘技术和“表面过滤”技术成为袋式除尘新技术,设备大型化将成为方向。