down grading 中文意思是什麼

down grading 解釋
品位降低
  • down : adv （downmost）1 向下（面）；下，降；在下（面）。 come down 下來；下（樓）來；（雨等）落下。 The...
  • grading : n. 1. 【工業】平地面，減少斜度。2. 分品，分級，分段，校準。3. 粒度。
  1. This machine is comprised of screen box, vibration source and damper, vibrating frame and screen box are connected with 4 - 12 group soft rubber damp - ers fixed up and down, and the centrifugal force is generated therein, the floating ampli - tude is controlled by the damper, by which, material realizes a process of throw and lami - nation filtration downward, and therefore reach - ing the optimized grading and screening ef - fect

    本機由篩箱.振動源及減震器三大部分組成.振動機架與篩箱連接有4 - 12組軟橡膠減震器上下固定，產生離心力，由震器控制浮動振幅，使物料有一個向下拋震和向下分層過濾的過程，從而達到最佳分級過篩的效果
  2. Article 18 the state shall lay down the tar content grading standards for cigarettes and cigars

    第十八條國家制定卷煙、雪茄煙的焦油含量級標準。
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