膨脹系數 的英文怎麼說

中文拼音 [péngzhàngxìshǔ]
膨脹系數 英文
coefficient of dilatation
  • 膨 : 動詞（物體的長度或體積增加） expand; swell
  • 脹 : 動詞1. （膨脹） expand; dilate; inflate 2. （脹大） swell; distend; bloat
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 膨脹 : expand; swell; dilate; inflate; puff; bulge; inflation; expansion; dilatation; buckling; swelling...
  • 系數 : [數學] coefficient; ratio; modulus; quotient; factor
  1. Treating the anharmonic terms of potential energy as perturbations, and employing the formulas for atomic displacements and hamiltonian in phonon occupation number representation, the formulas for thermal expansion coefficients of crystal nano - wires are derived and the numerical calculations are carried out in this paper

    摘要將原子間相互作用勢的非諧項作為微擾，運用聲子數表象中的晶格原子振動位移和晶格振動哈密頓公式，推導了納米晶體線的熱膨脹系數公式，並進行了數值計算。
  2. The housing has a higher coefficient of expansion than the ring.

    殼體比圓環具有較高的膨脹系數。
  3. Cordierite is a kind of superior heat - resistant material melting point can achieve 1400, and its thermal expansion coefficient is close to zero

    Cordierite是一種優越的耐熱材料（熔點達1400 ）其熱膨脹系數接近於零，因此，可忍受急劇之溫差。
  4. Testing of solid fuels - determination of the dilatation of coal

    固體燃料試驗.煤膨脹系數的測定
  5. And due to the heat expansile coefficient of the stainless steel rather high, the connecting force between the stainless steel pipe and the pipe coupling in the room temperature is much less than that between the titanium alloy pipe and the pipe coupling. the results accord with the tensile experiments well. finally, the dependence of dimensions of the coupling on the strength of the connector system is analyzed

    模型計算還表明，被接管材料和管接頭材料之間的熱膨脹系數的差異會造成管接頭系統的室溫強度低於高溫強度；由於不銹鋼的熱膨脹系數較大，使得室溫下1不銹鋼管與n立tinb形狀記憶合金管接頭間的抱緊力遠小於鈦合金管與nitinb形狀記憶合金管接頭間的抱緊力，成功地解釋了拉脫實驗中的結果。
  6. It is found that the ca ( no3 ) 2 - po ( oh ) x ( oet ) 3 - x - c2h5oh system with cf3cooh added gives out much gas during heat - treatment which will result in films with many c

    Fha薄膜較純ha薄膜有較好的與基板的結合強度，這得益於兩方面：一方面fha熱膨脹系數較ha小，與
  7. Abstract : based on the present possessed experimental data of steels with their different major chemical composition, this article formularized the calculation of linear expansion coefficients of fine carbon steels and low alloy constitutional steels through a series of alternate analysis, generalized statistics, curve superimposition and mathematical modeling

    文摘:對優質碳素結構鋼和幾類低合金結構鋼，在現有實驗數據的基礎上，通過迭代分離、綜合統計、圖象分析和數學擬合，得出按鋼的主要化學成分確定其線膨脹系數的計算關系。
  8. Hypereutectic al - si alloys are known to be suitable for wear - resistance material because of its low density, high tensile properties and low coefficient of thermal expansion

    高硅鋁合金的耐磨性好，強度高，密度低，熱膨脹系數小。
  9. The relations between relative measurementerror resulting from temperature and heat distensibility coefficient of coil ’ s framework andwindingcoilwerecarriedout. theinfluenceofelectromagnetisminterferenceontheaccuracyof rogowski coil, as well as the effect of temperature on integraph, were studied. somemeasures based on the above investigating results were proposed to insure the precision ofrogowski coil sensor head, such as the selection of materials and facture methods, improvment of technics and design of additional compensation

    利用建立的rogowski線圈的數學模型對溫度和外界干擾磁場的影響進行了分析，得出了溫度造成的相對誤差與線圈骨架和繞組線圈熱膨脹系數之間的關系;從兩個方向上分析了干擾磁場對線圈精度的影響;分析了溫度對積分器的影響等。
  10. A very low linear expansion coefficient sample carrier made from invar, ensures that temperature change has no effect on the sample position

    由不脹鋼製成非常低膨脹系數的樣品載臺保證溫度變化對樣品的位置沒有影響。
  11. This mismatch in coefficient is certain to result in instability of the center of gravity.

    膨脹系數不相配必須會引起重心不穩定。
  12. The imported transparent glaze fired at lower temperature was analysed semi - quantitatively by adopting emission spectroscope. the stripping of lead and cadmium from this transparent glaze fired at lower temperature in ceramic product was determined by atomic absorption spectroscope. the effect of chemical composition on the stripping of lead and cadmium was analysed. upon the author s opinion, the overproof lead stripping from the imported transparent glaze fired at lower temperature can only be settled by adopting lead - free glaze instead of adopting low - lead prescription. the author succeeded in developing an excellent lead - free transparent glaze fired at the lower temperature of 1000 1050. the success is based on an inquiry into the feasibility of using such new agents of fusion as li2o and sro in replacement of pbo ; and on a study of the effects of the contents of sio2 ， al2o3 ， b2o3and other metallic oxides on such performances of glaze as coefficient of linear expansion, fusion temperature and transparency. it is also based on an analysis of coefficient of linear expansion of blank and glaze on an analysis of coefficient of linear expansion of blank and glaze on their correlation ; and on a study of technology for preparing glaze

    採用發射光譜儀對進口低溫透明釉進行半定量分析，並用原子吸收光譜儀測定其陶瓷製品的鉛、鎘的溶出量，分析化學成分對鉛、鎘溶出量的影響.結果表明，進口低溫透明釉採用低鉛配方不能解決鉛溶出量的超標問題，只有採用無鉛釉才能解決.探討用氧化鋰和氧化鍶等新型熔劑完全代替氧化鉛的工藝，研究釉料中氧化硅、氧化鋁、氧化硼和各種金屬氧化物的含量，對釉的線膨脹系數、熔融溫度和透明度等性能的影響.分析坯料、釉料的線膨脹系數及其相互關系和釉料制備的工藝，研製出優質的1000 1050低溫無鉛透明釉
  13. The studies indicate that different content of pyrophyllite and dolomite can cause the following three cases : ( 1 ) making the refractory point decrease linearly and, to some extent, influencing the microstructure and properties of sintered body ; ( 2 ) acceleratingmullite formation during sintering, reducing thermal expansion coefficient of bond, reinforcing the matching nature and improving the flexural strength and shock strength ; ( 3 ) preventing sic grinding tool from generating black core, expanding suitable sintering temperature range of sic grinding tool

    同時，也不同程度地影響了磨具燒結體的微觀結構和性能； （ 2 ）可促進在燒結過程中莫來石的形成，降低結合劑的熱膨脹系數，加強了結合劑與磨料的匹配性，提高了磨具的抗折強度和抗沖擊強度； （ 3 ）在一定溫度范圍內還可防止碳化硅磨具出現黑心現象，拓寬了碳化硅磨具的燒結溫度適應范圍。
  14. Experiments show the optimum content of pyrophyllite and dolomite is 30 % ; in contrast to original bond, the refractory point of bond is reduced by 55, the average coefficient of thermal expansion is reduced by 30 % and flexural strength and shock strength of grinding tool are increased by 27 % and 22 % respectively

    通過實驗發現：葉蠟石和白雲石最佳含量為30 % ，與原結合劑相比，結合劑耐火度降低了55 ，平均熱膨脹系數降低了30 % ，磨具抗折強度提高了27 % ，磨具抗沖擊強度提高了22 % 。
  15. The t - r characteristics may originate from the total function of volume expansion and temperature susceptibility of asphalt, the deference of volume expansion coefficient with heat between asphalt and graphite, and internal stress

    而溫敏產生的原因則為瀝青的體積膨脹、石墨和瀝青的熱膨脹系數差異、內部應力和瀝青溫度敏感性共同作用的結果。
  16. The measuring element of the bimetal thermometer is a quick reacting bimetal coil. it is manufactured from two cold - welded metal strips with different thermal expansion coefficients and rotates in proportion to temperature

    雙金屬溫度計的測量元件是一個快速反應雙金屬線圈，由兩根不同熱膨脹系數的金屬條冷焊在一起，根據溫度比例旋轉。
  17. The results indicated that, the fabrication process of ultra - fine grain material is mainly determined by the stress, rotate speed and the flux of cooling water. the grain refining and the hardening effect are mostly affected by the rotate speed and the flux of cooling water. compared with commercial ly12, the invalidate strength and the prolongation rate of the ultra - fine grain material are properly improved in the measurement of compression property ; and the abrupt change of the dilatability of the ultra - fine grain material at 500c is found ; also the phenomena of which the grain size of these microstructures is stable when annealed under 300c is observed

    研究表明，採用本文提出的摩擦壓扭強變形區轉移法可以得到棒狀的超細晶材料，軸向壓力、扭轉速度和溫度是採用該方法制備超細晶材料的主控參數；試件的旋轉轉速和冷卻速度對變形區晶粒細化和硬化效果影響顯著；超細晶ly12的壓縮性能與淬火+自然時效狀態的ly12壓縮性能相比，斷裂強度和延伸率均有一定程度的增強；超細晶ly12的熱膨脹系數在550左右發生明顯的變化。
  18. Advances in research on low cte polyimides used in flexible printed circuit board applications

    用於撓性印製電路基板的低熱膨脹系數聚酰亞胺研究進展
  19. Model sywly - 75 physics high to foam polyethylene insulating, aluminum pipe other conductor coaxial cable suitable for catv backbone project, its interior conductor adopt bastion of iron make aluminium, other conductor adopt aluminum pipe, the two have the same hot coefficient of expansion and modulus of elasticity, woods reduce in cable conductor draw the troubles that are led to the fact

    Sywly - 75型物理高發泡聚乙烯絕緣、鋁管外導體同軸電纜適用於catv主幹線工程，其內導體採用銅墻鐵壁包鋁，外導體採用鋁管，兩者具有相同的熱膨脹系數和彈性模數，林減少了由電纜內導體拉拔所造成的故障。
  20. The heat expansion coefficient of plastic is much higher than metal caused by abrasion heat and the change of environment condition. plastic gear needs enough gap

    因磨擦熱和環境條件的變化，塑料比金屬熱膨脹系數高許多，塑料輪需要足夠的
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