wheel n. 1.輪,車輪;輪狀物。 2.〔口語〕腳踏車;【造船】艙輪;(汽車的)方向盤,駕駛盤;(制陶)轉盤;紡車;輪轉焰火;【歷史】車磔的刑車;〔美俚〕〔pl.〕汽車。 3.旋轉;【軍事】迂回(運動)。 4.〔常 pl.〕原動力;機構。 5.大人物,紅人。 6.〔美俚〕銀元;〔pl.〕重要匪徒;〔pl.〕腿。 7.〔美劇〕巡回演出,聯營劇場。 the Fortune's wheel 命運。 the wheel of birds 一群鳥的旋回飛翔。 the wheels of government 政府機構。 the wheels of life 人體的機能。 a wheel within wheels [a wheel] = wheels within wheels. at the next turn of the wheel 下次遇機會時,下次運氣有所改變時。 at the wheel 掌著舵的;掌握著大權的,擔任著領導[管理]工作的。 break a butterfly [fly] on the wheel 殺雞用牛刀,小題大作。 break sb. on the wheel 處車磔刑。 go on wheels 順利進行。 keep the cart on the wheels 孜孜不倦地進行工作。 on wheels 1. 用車。 2. 輪子動著;順利,順暢。 put a spoke in sb.'s wheel 妨礙某人。 run on wheels = go on wheels. the fifth wheel of a coach [waggon ] 多余的東西,蛇足。 the turn of the wheel 命運的轉變。 wheel of life 1. 【宗教】輪回。 2. 萬花筒。 have wheels in the head 〔美國〕發瘋,有神經病。 wheels within wheels 復雜的機構;復雜的事情;神秘復雜的原因[過程]。 vt. 1.推動,拉動,開動(車子);用車子運;裝車輪于。 2.旋轉,轉動;使轉變方向。 vi. 1.輪轉,旋轉;轉變方向。 2.〔口語〕騎腳踏車(等)。 wheel out the table 把(有腳輪的)桌子推出來。 wheel round 轉身。 Right [Left] wheel! 【軍事】右[左]轉彎走! wheel and deal 〔美俚〕不受一切束縛地獨斷獨行;牢牢地控制,掌握支配權。
Based on the imported turbocharger vtc254 which is in operation , considering the high altitude in the west as well as continuously speed - raising need and the characteristic of our railway diesel locomotive , in this paper 16v280 diesel engine turbocharger , especially the compressor is discussed . for example , through calculation on the match of turbocharger and diesel engine , a brand - new technology for compressor wheel is introduced 本課題是以目前運營中的引進增壓器vtc254為基礎,針對我國鐵路內燃機車的特點,為解決西部高原內燃機增壓的需要和我國鐵路機車不斷提速的需要,對我國目前的主營機型16v280柴油機匹配的增壓器,特別是對壓氣機進行研究。
This new technology changes from the traditional method by which the induced and compressor wheel separately are designed and produced to a new one by which the one - piece compressor is designed . on the basis of this new technology and the optimum blade profile , the performance of both the compressor and the turbocharger is largely improved . through the heating power calculation of the compressor , the analysis of the surge and the block of the compressor , the test - bed performance test of the turbocharger , the matching test of turbocharger and diesel engine , the propulsion test of the turbocharger on plateau condition , it is proved that the newly - designed compressor not only has high efficiency , but also improves the flow distribution in the high efficiency area so that the propulsion line can run through the high efficiency area 主要內容包括:提出一種全新的壓氣機葉輪技術和概念,這種技術將傳統的導風輪和壓氣機分開設計、單獨加工改為整體設計、整體加工的單體葉輪;從增壓器與柴油機配機計算所得出的基本參數出發,通過對壓氣機進行熱力計算,確定壓氣機的基本結構參數;再對葉型以及葉輪輪廓與葉輪罩殼的配合間隙進行優化,對新設計的壓氣機進行喘振和堵塞分析;通過增壓器平臺性能試驗,驗證了新設計的壓氣機的性能水平得到了較大的提高,達到了提高增壓器的整體性能水平的目的;通過增壓器與柴油機配機試驗、以及增壓器用于高原條件下的牽引試驗,驗證了新設計的壓氣機不但具有高效率,還改善了高效率區的流量分布,使牽引特性線貫穿高效率區。