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- The new muffler device has simple structure,it has lesser effect on the resistance loss of chief ventil... 該消聲裝置結構簡單,對主要通風機的阻力損失影響小,防塵、防潮及降噪效果明顯,可廣泛的應用於煤礦主要通風機的消聲降噪。
- For example, the Capacity of Jet Fanin tunnel,the flux distribution and resistance loss in the chimney. 重點研究了射流風機在隧道內的的調壓性能,豎井三通的氣流分佈以及局部阻力損失。
- When the pipe diameter ratio varies a little,the local resistance loss of sudden contraction changes insignificantly. 存在一個最佳彎徑比,使得水平彎管的局部阻力損失最小。
- Presents the theoretical calculation formula and performs experiments of frictional resistance loss for PP-R hot water pipes. 給出了PP-R熱水管沿程阻力損失的理論計算公式,並對其進行了實驗研究。
- According to the analysis on pressure of three kinds of duct systems,concludes that the total pressure of a fan should be equal to the resistance loss of the duct system. 通過對三種風道系統的壓力進行分析,認為應根據風機全壓等於風管系統阻力損失來選擇風機。
- The predictions of resistance loss using CFX for two configurations of silencers are compared with experimental results, and the relative error is within 5%. 用CFX計算了兩種結構水消聲器的阻力損失,並與實驗結果進行了對比分析,其誤差控制在5%25以下。
- In comparison with other centrifugal gas-liquid separators, the resistance loss of the axial flow guide vane type gas-liquid cyclone separators was less. 軸流導葉式氣液旋流分離器與其他離心式氣液分離器比較,其特點是阻力損失小。
- Abstract: Numerical simulation is carried out for three-dimensional flow in three types of undulated pipes with different geometrical condition, for analysis on resistance loss of flow in bend duct. 摘要:為分析彎曲管道內部流體流動的阻力損失,分別對不同幾何條件下的3種波浪管內部流動進行了數值模擬。
- Air valve size and airflow resistance losses of valves always speed and the size of the spring-loaded edge. 氣閥阻力損失大小與氣流的閥隙速度及彈簧力大小有關。
- along regulation resistance loss 沿程阻力損失
- Her age is of secondary interest. 她的年齡不太重要。
- In secondary school, children get more advanced knowledge. 在中學,孩子獲得更深一些的知識。
- A secondary matter; a side issue. 次要的第二位的事; 較次要的問題
- Her resistance to the proposal has crumpled. 她對這個建議的抵觸情緒已化為烏有了。
- From the air valve operating principles of view, air valve performance will directly affect the work of compressor tanks, air valve for the following requirements : resistance losses small. 從氣閥工作原理來看,氣閥工作性能將直接影響壓縮機氣缸的工作,因此,對氣閥有如下要求:阻力損失小。
- A secondary mine passageway between two main shafts or tunnels. 次要礦山甬道礦井中連接兩條大隧道的小巷道
- Each of the bulbs has a resistance of120 ohms. 每一盞燈泡有120歐姆的電阻。
- Copper has less resistance than lead. 銅的電阻比鉛的小。
- There has been a lot of resistance to this new law. 反對這項新法律的人很多。
- The government introduced universal secondary education years ago. 幾年前,政府就倡導普及中等教育。