proportion by weight 中文意思是什麼

proportion by weight 解釋
重量比
  • proportion : n. 1. 比，比率；【數學】比例。2. 相稱，平衡，調和，配合。3. 份；部分。4. 〈pl. 〉 大小，面積，容積。vt. 1. 使相稱，使均衡。2. 攤派，分配。
  • by : adv 1 在側，在旁，在附近。2 （擱）在一邊，（放）到旁邊，（存）在一旁；收著。3 （由旁邊）經過，過...
  • weight : n 1 重量；體重；求心力，重力，（地心）引力。2 斤兩，分量，衡，計重單位。3 （壓東西的）重物。4 砝...
  1. To do this, we weight the hourly wage for each grade by its proportion of the total labor required to produce the product.

    為此，把每一等級的小時工資，以生產這種產品所消耗的該等級勞動量占總勞動量的比重為權數，進引加權。
  2. With the development of reusable launch vehicles, the thermal protection system has been oriented by the idea of incorporate design which involves thermal protection - structure - thrust system. at the same time, the weight proportion of thermal protection system has been reduced, but the working temperature of thermal protection system has been increased

    隨著可重復使用航天器的發展，熱防護系統在向著防熱-結構-推進系統一體化設計的方向發展，與此同時，整個防熱系統在總起飛重量中所佔的重量比例也在降低，而使用溫度升高，即要求防熱結構日趨先進。
  3. Iron, in combination, has been calculated to make up about five per cent by weight of the earth ' s crust ; though some have surmised that the unknown depths, if we could explore them, would show a larger proportion of iron

    據估算，鐵化合物約佔地殼重量的5 ，但有人猜測，在地球的未知深處，如果探測得到，可能顯示出更大的含鐵比例。
  4. The influence of retarder on the seaing time and ultimate strength of gypsum plaster was investigated in this paper. the experimental results indicate that the effect of single retarder, such as citric acid, is inferior to that of composite retarder which was made of blending citric acid with a few portland cement ( about 0. 5 ?, by weight ). the effect of different water - retention agents, such as polyvinyl alcohol ( pva ), carboxymethyl cellulose ( cmc ), and na - bentonite, etc., was also studied, and the results demonstrate that by means of adding organic and inorganic water - retention agent simultaneously the water - retention of plastering slurry can obviously be improved. the optimal mix proportion of gypsum plaster suitable to finish coat of walls and ceilings of buildings has been got by use of factorial experiment with orthogonal array accounting for interactions between factors each other

    研究了分別以檸檬酸、檸檬酸與普通硅酸鹽水泥復合物作緩凝劑，調節粉刷石膏的凝結時間，並對比2種緩凝體系對石膏抗折、抗壓強度的影響.比較不同保水劑（聚乙烯醇、羧甲基纖維素）以及相同量的保水劑在不同工藝流程下保水效果上的區別.探索了有機保水劑和無機保水劑對粉刷石膏的保水性的影響.結果表明，檸檬酸與普通硅酸鹽水泥的復合緩凝劑比單純的檸檬酸更能有效地延緩建築石膏的凝結，同時建築石膏的抗折、抗壓強度降低幅度減小
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