凈斷面面積 的英文怎麼說

中文拼音 [jìngduànmiànmiànjī]
凈斷面面積 英文
net sectional area
  • 凈 : Ⅰ形容詞1 （清潔; 干凈） clean 2 （凈盡;沒有剩餘） empty; hollow; bare 3 （純） net Ⅱ動詞（使干凈;...
  • 斷 : Ⅰ動詞1 （分成段） break; snap 2 （斷絕;隔斷） break off; cut off; stop 3 （戒除） give up; abstai...
  • 面 : Ⅰ名詞1 （頭的前部; 臉） face 2 （物體的表面） surface; top 3 （外露的一層或正面） outside; the ri...
  • 積 : Ⅰ動詞（積累） amass; store up; accumulate Ⅱ形容詞（長時間積累下來的） long standing; long pending...
  • 斷面 : section; fracture surface; plane of fracture
  • 面積 : [數學] area
  1. For hoods with shutters in four sides, the results show : 1 ) the hoods positively placed boards are called hoods used for venting airflow ; hoods negatively placed boards are called hoods used for leading airflow ; 2 ) among the hoods used for venting airflow, the most effective hoods should have positive declining angle value of 30, the ratio 4 of areas between the four windward faces and the gular section ( fy / fj = 4 ), the value of b range from 70 mm to 120 mm and the value of b / h range from 0. 5 to 0. 6 ; 3 ) the most effective hoods should have negative declining angle value of 60, the ratio 4 of areas between the four windward faces and the gular section ( fy / fj = 4 ), the value of b range from 100 mm to 170 mm ( the optimum value is 120 mm ) and the value of b / h range from 1. 4 to 2. 2 ( the optimum value is 2. 0 )

    對於四面設百葉型風帽，計算表明: l ）正裝傾斜擋板的百葉型風帽可認為是排風型風帽，倒裝擋板傾斜的百葉型風帽可認為是進風型風帽; 2 ）排風型風帽中，擋板正裝30 」 、風帽四個迎風面的有效面積fy和風管凈斷面積fj的比值（ fy腸）為4 、擋板寬度b在70inln到120inln之間、板間距比值隴在0 . 5到0 . 6的百葉型風帽排風效果最好; 3 ）進風型風帽中，擋板倒裝裝60 「 、風帽四個迎風面的有效面積和風管凈斷面積的比值（ fy例）為4 、擋板寬度b在100咖到170mm之間（ 120mm為最佳） 、板間距比值隴在1 . 4到2 . 0的進風型風帽（ b爪= 2 . 0為最佳）的百葉型風帽進效果最好。
  2. Widely used for large area suspended ceiling and separation of steel structure workshop, suspended ceiling, wall body and air purification room

    廣泛適用於鋼結構廠房、吊頂、墻體、空氣潔凈室的大面積吊頂與隔斷。
  3. The factors that have effect on the car ' s emission such as cleaning inside engine, size of three - way catalytic converter and leakage of exhaust system etc have been tested and analyzed, and some related parameters are determined. in order to ensure that the emission meets the requirements of the euro ii standard at one time, to pass the examination of 80000km durability, and to achieve excellent performance indicator while assuring the emission requirements, the design of intake manifold and camshaft profile is optimized, the test of engine performance and car ' s emission and environment performance have been conducted. through comparison by test, it is shown that the carburetor engine after retrofitting to electronic fuel injection engine has achieved good level in terms of emission and performance, and has been upgraded to the same level as the engine of japan mitsubishi and suzuki

    為了滿足國家環保法規不斷提高的要求，本文對化油器式發動機改造成電控燃油噴射式發動機進行了研究與開發；確定了工程方案和開發目標；對機內凈化、三元催化器體積、排氣系統漏氣等對整車排放的影響進行了試驗和分析，確定了相關參數；為了確保對整車排放的影響進行了試驗和分析，確定了相關參數；為了確保排放一次通過歐標準，並完成8萬公里耐久性考核，在確保排放的同時達到良好的性能指標，對進氣歧管、凸輪軸型面的設計進行了優化；並進行了發動機性能測試，整車排入測試和環境性能測試。
分享友人
分享到 Line

分享到臉書