接近區段長度 的英文怎麼說
中文拼音 [jiējìnqūduànzhǎngdù]
接近區段長度
英文
approach section length- 接 : Ⅰ動詞1 (靠近;接觸) come into contact with; come close to 2 (連接; 使連接) connect; join; put ...
- 近 : Ⅰ形容詞1 (空間或時間距離短) near; close 2 (接近) approaching; approximately; close to 3 (親...
- 區 : 區名詞(姓氏) a surname
- 段 : Ⅰ量詞(部分) section; segment; part; paragraph; passage Ⅱ名詞(姓氏) a surname
- 長 : 長Ⅰ形容詞1 (年紀較大) older; elder; senior 2 (排行最大) eldest; oldest Ⅱ名詞(領導人) chief;...
- 度 : 度動詞[書面語] (推測; 估計) surmise; estimate
- 接近 : 1 (靠近; 相距不遠) be close to; near; approach 2 [天文學] approach; approximation; application;...
- 長度 : length; longitude; size; extent; footage
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The results showed that the f fragment, 728bp in length, could be a new gene with a little homology to the genes coding for polyketide synthetase or fatty - acid synthetase and the b fragment, about 4kb in length, is inferred to have repeat sequences around tn5 insertion site, in which there is homology to the wa 314 right arm of the high - pathogeniciry island of yersinia enterocolitica. to reveal any pathogenicity of enterobacter cloacae b8 and its mutated strains b8b and b8f to animals, the experiment with mice was carried out
結果顯示, f片段長度為728bp ,與現有生物數據庫的blast比較分析,發現該序列僅有局部短於1oobp的區域與polyketide合成酶基因或與脂肪酸合成酶基因有低的同源性,推測為一新基因; b片段長約4kb ,序列拼接結果推測靠近tn5插入位點部位有重復序列,對b片段tn5遠端的部分序列進行blast比較,發現它與小腸結腸炎耶爾森氏菌的強毒力島有一定的同源性。The welding technology of francis turbine runners is optimized from the view of subsection welding and local heating by numerical simulation. the result shows that welding residual tensile stress appears in the weld and its area nearby, and peak stress appears in the dangerous area of blades after practising quondam welding technology ; welding residual tensile peak stress in the dangerous area of blades can be decreased by welding both ends earlier and then welding middle section later during subsection welding, and decreasing effect on welding residual stress of the subsection welding is related to the weld length of blade outlets and welding direction of each subsection ; decreasing effect on residual stress of the local heating is direct proportional to heating time, heating temperature, heating area, and inversely proportional to cooling area, and welding residual tensile peak stress in the dangerous area is decreasing trend earlier, and then increasing trend later with heated location increased
本文利用數值模擬手段對轉輪的焊接工藝從分段焊和局部加熱兩個方面進行了優化,結果表明:採用普通工藝焊接時,葉片焊后殘余拉應力出現在焊縫及其附近區域,並且在葉片出水邊的熔合線附近(危險區域)出現了峰值;在採用優化的分段焊時,先焊兩端后焊中間的方法可以降低葉片危險區域的焊接殘余拉應力峰值,降低效果與葉片出水邊焊段長度、焊縫各段的焊接方向有關;局部加熱法降低轉輪危險區域殘余應力的效果主要與加熱時間、加熱溫度以及加熱面積成正比,與冷卻面積成反比,並且危險區域的殘余應力隨加熱區域的增大呈先降低后升高的趨勢。Approach block length
接近閉塞區段長度The simulations results show that the average combustion temperature is much lower in fuel - rich state and little higher in oxygen - rich state near the best o / f ratio. by extending the post - chamber length the oxidizing gas and the fuel pyrolytic gas can burn completely and the average combustion temperature can be prominently increased. the fuel - rich recirculation zone close to the head of combustion chamber is very important for the combustion
計算結果分析表明:發動機在富燃狀態下平均燃燒溫度偏低,在接近理想配比的富氧狀態下平均燃燒溫度有所提高;加長補燃室可以大幅度提高發動機的平均燃燒溫度,並促進氧化劑氣體和熱解氣體的充分燃燒;燃燒室頭部的富燃迴流區對發動機的燃燒非常重要,去掉燃燒室頭部突擴段后,氧化劑氣體和燃料熱解氣體不能充分燃燒,發動機的平均燃燒溫度大幅下降。Approach section length
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