upstream line 中文意思是什麼

upstream line 解釋
上游管線
  • upstream : adv. 向上游，溯流。adj. 1. 溯流而上的。2. （石油工業等）上游的，和石油的勘探、開采及輸送到起運港口有關的〈石油工業此後的提煉等過程則稱為下游（downstream）產業〉。
  • 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. According to differences of construction process, boundary condition, temperature and stress of two schemes extending 3m deep short seam on upstream face in the middle of rcc overflow section and no short seam are calculated, what " s more, in this paper the equivalent line drawing of stable temperature field and unstable temperature field during construction and operation period and the duration curve drawing of typical points " s temperature and stress are plotted, and the results of peak and minimum on temperature in every month and maximum on tensile stress are attained

    根據施工過程和邊界條件，對溢流壩段中間上游面增設3m深短縫和不設短縫兩個方案進行了溫度和應力計算，並繪制出穩定溫度場等值線圖及施工期、運行期非穩定溫度場等值線圖，典型點溫度和應力歷時曲線圖，逐月最高、最低溫度和最大拉應力及相應位置等成果。
  2. According to the design code for filling and emptying system of shiplocks and the layout characteristics of the second line of qililong sea route on fuchun river and the upstream navigation tunnel, the type of the filling and emptying system of shiplocks is determined, the area of the culvert transect at the valve is calculated, and the layout type and key size of the filling and emptying system are recommended

    摘要根據富春江七里瀧航道第二通道工程船閘及其上游通航隧道總體布置的特點，按照《船閘輸水系統設計規范》的要求，確定了船閘的輸水系統型式，並計算了輸水閥門處廊道斷面的面積；推薦了通航船閘輸水系統的布置及關鍵尺寸。
  3. As a link between upstream and downstream in petrol - chemical industry in china, pipeline transmission play an important role. along with the reform in china petrol and chemical line, the oil - gas pipe market was divided into three parts. there are three main competitors : petrol - china pipeline company ; transport & storage company and west - south transport, their competition are very fiery each other

    1998年中國三大石油公司的重組改制打破了中國油氣管道運輸業由一家企業? ?原中國石油天然氣總公司廊坊管道局一統天下的局面，在原管道局的基礎上，一分為二，分別組建了中國石油管道公司和中國石化管道儲運公司。
  4. Because existed power flow tracing method is too complex, a new power flow tracing method is put forward, including downstream tracing and upstream tracing. the method accords to proportional sharing principle, then the line flow " constitution of generator and load can be got, as well as relationship between generator and load

    針對現有潮流跟蹤的復雜性，提出了按比例分配原則進行潮流順流和逆流跟蹤的演算法，得到線路潮流中各用戶引起的潮流組成以及電源和負荷的供用電關系。
  5. Asymmetrical digital subscriber loop ( adsl ) is a prevalence fashion of broadband solutions today. it uses the installed base of copper telephone line as the transmission medium. with the combined use of sophisticated signal modulate methods and the high speed digital signal process technology, it ' s upstream speed can be 100kbps to 800kbps and the downstream delivers from 1mbps to 8mbps

    不對稱數字用戶線（ adsl ， asymmetricaldigitalsubscriberloop ）是目前比較流行的寬帶接入方式，它使用現有的銅質電話線作為傳輸介質，採用先進的信號調制方式和高速的數字信號處理技術相結合，上行速度為100kbps 800kbps ，下行速度為1mbps 8mbps 。
  6. Note : for australia and new zealand, line strainers should be installed between the upstream shutoff valve and the inlet of the backflow preventer

    注意：適用於澳大利亞和紐西蘭：管路過濾器應該安裝在上游關閉閥和防迴流閥進口之間。
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