main steam line 中文意思是什麼

main steam line 解釋
主蒸汽管道
  • main : adj 1 主要的，主，全，總。2 充分的，盡量的；全力的，有力的。n 1 體力，氣力；力〈僅用於 with might...
  • steam : n 1 蒸汽，水蒸氣，水氣，霧，蒸氣壓力。2 〈口語〉精神，精力，氣力；怒氣。3 輪船，乘輪船旅行。vi 1 ...
  • line : n 1 線；繩索；釣絲；測深度用繩，捲尺。 a fishing line 釣魚線。 be clever with rod and line 會釣魚...
  1. The results of calculation and measures show that the low frequency of steam pipelines vibration fastens on 4. 3 to 4. 5 hz and 9. 5hz, the low modes fastens on one - steps curl in vertical plane and its plane of each steam pipeline and one - rotation along with the line connecting the port circling main steam gate and the horizontal port of unit. the modes of # 3 and # 4 main steam conduits occupy the majority of low steps modes ( the five of the first eight phases ), except for the first phase rotation vibration, the maximal distortion of other low steps vibration modes are all caused by the vibration of erect pipelines of cylinder

    計算和實際測量結果表明：導汽管低頻振動以4 . 3 - 4 . 5hz 、 9 . 5hz頻率為主，管系的低階模態以各導汽管在垂直導管平面和平面內的一階彎曲、以及繞主汽門處端點與水平段汽機端連線的一階扭轉為主， # 3 、 # 4導汽管的振動模態占低階模態的多數（前八階模態中的五階） ，除一階扭轉振型，導汽管的其它低階振動模態中都是進汽缸立管的下端振動變形最大。
  2. D52 class is the biggest steam locomotive for a freight in japan. it was built for the wartime transport of the main line. from 1943 to 1947, the manufacturing industries, kisha - seizo, kawasaki, hitachi, mitsubishi, nippon - sharyo, jnr takatori works, and jnr hamamatsu works, had produced the 285 cars of this class

    ?時中貨物輸送?加? ?東海道山陽本線重量貨物用製造最強貨物用機?車昭和18年1943年昭和20年1945年汽車製造日立三菱川崎日本車? ?道省浜松工場鷹取工場製造
  3. The stress analysis and the fatigue life loss calculation of steam drum are carried out in this article. a simplification formula is proponed to calculate the main stress and is used in configuration of dcs. the rain - flow method is used to count the fatigue cycle, which can satisfy the need of on - line monitoring

    本文對其進行了應力分析和疲勞壽命損耗的計算，並提出主應力計算的簡化公式用於dcs組態，採用雨流法作為在線計算的疲勞計數方法，滿足了壽命損耗在線監測的要求。
  4. With these algorithms above, a simulation test has been taken to the main steam temperature control of boiler by means of generalized predictive control using takagi - sugeno fuzzy models. the test shows that t - s model of the nonlinear system can be successfully identified on line and the nonlinear main stream temperature can be controlled successfully using predictive algorithm

    並把這種基於t - s模型的預測控制演算法應用在某電廠的主汽溫的升負荷過程的控制中，模擬表明本演算法能夠很好地通過在線非線性t - s模型的辨識從而實現對于具有非線性特性的主汽溫對象的預測控制。
  5. Series a includes steam service for warming up before the main line is opened, and for balancing pressure where the lines are of limited volume

    系列a包括用於在主管道開啟前進行加溫的蒸汽應用場合，或在流量有限的管道上平衡壓力。
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