short seat 中文意思是什麼
short seat
解釋
后襠下垂-
He was so nervous that he had had a hard time keeping his seat during this short, direct conversation.
在這簡短，面對面交談的時候，他急得象坐在針氈上一樣。 -
The paper analyzed the struture of the tri - eccentric butterfly vavle at length, defined the tri - eccentric butterfly valve, educed the geometry function and its characteristic about the section of the butterfly disc. the results indicate : the parallel contour line across butterfly disc thickness is normal ellipse, thereby eslablished function relations between its geometry parameters ( long axis and short axis ) of three primary sections of the butterfly disc and the tri - eccentricity ; in order to avoid interference between the butterfly disc and the valve seat as well as the valve body, combining the torque, we obtained the feasible range about the rotation center of the tri - eccentric butterfly vavle
本文主要分析了三偏心蝶閥的結構，給出了三偏心的定義，推導出了蝶板截面的幾何方程及其性質，結果表明，沿蝶板厚度的平行截面輪廓線為標準的橢圓形，進而推導出了蝶板幾個主要截面的幾何參數（長軸、短軸）與三個偏心之間的函數關系；考慮到蝶板啟閉過程中避免與閥體及閥座發生干涉，結合蝶板的啟閉扭矩，確立了三偏心蝶閥回轉中心的適宜區域。 -
Because most of ev ' s body is too short a little, the thesis emphasize how to attain a subective ideal shape through the principle to attain beautiful shape and the visual illusion ; on human engineering, the thesis aim mainly at the analyse of fist - ellipse, foot - ellipse and at the design of metef, seat and lamp in order to improve driver ' s efficiency at the most
2000年我國石油消耗量為2 . 6億噸，進口9000萬噸，其中汽車消耗了90的汽油， 20的柴油。到2030年，我國汽車保有量將增加15 20倍，即使考慮到內燃機轎車的技術進步，我國石油消耗量將達到8 10億噸，其中進口5 6億噸，形勢非常嚴峻。
分享友人