increase in grain size 中文意思是什麼

increase in grain size 解釋
晶粒尺寸增大
  • increase : vt 增加，增大，增多；增強，增進 （opp decrease）。 increase speed 增加速度。 increase one s pace ...
  • in : adv 1 朝里，向內，在內。 A coat with a furry side in有皮裡子的外衣。 Come in please 請進來。 The ...
  • grain : n 1 穀物，糧食〈英國叫 corn〉; 谷類植物。2 穀粒，籽粒。3 （沙、金、鹽等的）粒，顆粒，晶粒。4 些微...
  • size : n 1 大小，尺寸規模身材。2 （鞋帽等的）尺碼，號；（紙張的）開。3 巨大，大量；相當大的分量。4 〈口...
  1. In general, smaller grain size and greater angularity tend to increase the porosity while an increase in range of particle size tends to decrease porosity

    通常，顆粒越小曲率越大孔隙度越大，而當顆粒尺寸增大時孔隙度會減小。
  2. In this thesis, first, reasons and factors for the stability of loose rock dams were summarized according to the field surveys and certain expert ' s experiences. then, researches on block stability problems were reviewed, and according to the relationship between grain size and incipient velocity, it is found that the block weight is in direct proportion to 6 - 9 power of incipient velocity, and 50 % increase of the velocity will result in about 40 times change of the block weight. after that, experiments were conducted in a flume, focusing on the relationship between incipient velocity and some main factors including block weight, water depth over the dam, cross - section size, block material and river bed material

    本文首先根據散拋石壩損毀情況的現場調查資料，結合有關專家多年的整治經驗，總結出壩體的損毀原因及影響因素；對現有塊體穩定性的研究成果進行回顧和總結，並針對散拋石壩的直接損毀現象，結合山區河流的水流、地形特點，利用塊體粒徑與起動流速的關系，提出塊體穩定重量與起動流速高次方成正比的概念，流速50的增長可能導致塊體穩定重量接近40倍的變化；通過二維變坡水槽試驗，研究了壩體穩定的主要影響因素，包括塊體重量、壩頂水深、斷面尺寸、塊體材料（塊石和卵石兩種） 、護底等，結果表明對于山區河流，試圖僅僅通過增加壩體單個塊體重量或斷面尺寸來提高壩體穩定性效果甚微；最後，根據西部地區的自然、經濟、交通等條件，提出可以採用柔性混凝土鉸鏈體等一類整體性較好的護面層作為散拋石壩的防沖毀措施，以期取得良好的工程效果。
  3. It is reported that an increase in the zr content induces a reduction in the average grain size, decreases the dielectric constant, and maintains a leakage current low and stable. this is possible because the zr4 + ion has lager ionic size than ti4 +

    Zr4 +離子取代ti4 +離子之後將會抑制ti4 +離子與ti3 +離子的電子躍遷，從而減小了薄膜的漏電流，同時還有助於減小平均晶界體積，降低介電常數。
  4. The increase in average grain size of a polycrystalline material ; for most materials, an elevated - temperature heat treatment is necessary

    多晶體材料中晶粒尺寸的增大，對大多數材料來說，晶粒長大隻在升高溫度加熱的時候發生。
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