回气 meaning in English

air return
return air

Meanwhile , this scale is used platform structure , which offers solid structure and can bear the overload
特殊设计的回气装置使得现场干净，粉尘少，保证计量精度。
Made with high - pressure process . " white " for inhaling while " green " for exhaling . stainless - steel hose clip are in available
经高压处理制造.备有两款; "白喉"供来气用, "绿喉"则回气用;另有"不? ? ?喉码"以供订购配合使用
This scale has stainless steel mode , which is used stainless steel to make scale . this mode is very suitable for the corrosive chemical material and food safety requirements material
结构改成不锈钢材质制作和特殊的回气装置，可适合于有毒，有腐蚀性的散状物料的大吨位包装，例如：氰化钠等物料。