Fluid noise mainly comes from out put pulsation of rate of flow, the main reason of out put pulsation of rate of flow is the instant high pressure return flow that obturation cubage produced when the big round curve pressure transition. the v trough on the port plate can reduce the fluid noise. in this paper, the author based on the acting of dam a river and condensability of liquid and used matlab language as tool to calculate the v trough on the original port plate and drew out the p - t diagrammatic curve and analyzed its shortcoming and improved the design of original v trough and got that the best size of its angle was 12. 3 and its length was 5mm and the cross section was an equilateral triangle
流體噪聲主要來源於輸出流量脈動,造成輸出流量脈動的主要原因是閉死容積在大圓弧段壓力切換時產生的瞬時高壓迴流,在配流盤上開設v型
尖槽可降低因高壓迴流而引起的流體噪聲,本文以截流作用和液體的可壓縮性為理論依據,以matlab語言為工具,對原配流盤上的v型
尖槽進行了理論計算,繪制出p - t圖線,分析了它的不
足,並對原有v型
尖槽進行了優化設計,得出了v型
尖槽的最佳幾何尺寸:配流盤平面上的v型
尖槽的兩邊的夾角為12 . 3 ,槽長5mm ,槽的橫截面為等邊三角形。
It indicated the restless vivacity of her spirit, which to - day was doubly indefatigable in its tiptoe dance, because it was played upon and vibrated with her mother s disquietude
這表明了她那永不止歇的精神活力,而今天,由於受到她母親不平靜的心情的撥弄和挑動,她那
足尖舞跳得益發不知疲倦。
Located in the longjiang section of national highway 325 in foshan city in the pear river delta with developed industry, our factory is engaged in the production of totally - enclosed maintenance - free storage battery and dry - type lead acid storage battery, and designs and manufactures serial products in order to meet the present and future higher requirements. at present our factory has five major brands " jianfeng, aofeng, gangling, weiling, wangpu ", those products are known for their quick - start, large capacity and convenient use in the market, and are highly praised by vast motorcycle users and professionals
我廠位於工業發達的珠江三角洲佛山市龍江段325國道旁,是一家從事生產全密封免維護蓄電池和干荷式鉛酸蓄電池,是為了滿
足現在和未來更高要求面設計製造的系列產品,本廠現有「
尖鋒、澳鋒、港靈、威靈、旺普」五大品牌,該產品在市場以其啟動快捷、容量強勁,使用方便而著稱,深受廣大摩托車用戶和專業人士一致好評。
He proposed to set up there a national fertilising farm to be named omphalos with an obelisk hewn and erected after the fashion of egypt and to offer his dutiful yeoman services for the fecundation of any female of what grade of life soever who should there direct to him with the desire of fulfilling the functions of her natural
乃提議在此建造國立受精場155 ,取名「中心」 ,並豎一方
尖碑156 ,乃據埃及式樣鑿成。不論何等身分之女子,凡欲滿
足其天然官能者一旦來此,彼必為之忠心效勞,俾使之受孕。
The comic verse - writers and the cartoonists took hold of it with screaming laughter, and in the personal columns of society weeklies jokes were perpetrated on it to the effect that charley frensham told archie jennings, in confidence, that five lines of " ephemera " would drive a man to beat a cripple, and that ten lines would send him to the bottom of the river
俏皮詩和漫畫作者發出
尖利的笑聲抓住了它,社會新聞周刊的人物專欄也拿那詩說笑話,大意是:查理福雷山姆私下告訴阿簡寧斯,五行蜉蝣就
足以讓人去毆打殘疾人,十行蜉蝣就可以讓他跳河自殺。
If i am content to heal a hurt slightly, saying “ peace, peace, ” where is no peace ; if i forget the poignant word “ let love be without dissimulation ” and blunt the edge of truth, speaking not right things but smooth things, then i know nothing of calvary love
若我滿
足於輕微地醫治一個創傷,說平安,平安,而其實並沒有平安;若我忘記那句
尖銳的話:愛人不可虛假而把真理的利刃弄鈍不講應講的話,只說叫人舒服的話那我就還是絲毫不懂加略山的愛。
They used to go upstairs together on tiptoe, each with a candle, and on the third landing exchange reluctant good-nights.
他倆常常各自擎著蠟燭,躡著
足尖,一同上樓,在第三層樓梯平臺上,依依不捨地互道晚安。
Faults : soft or splayed toes ; paws too large and clumsy ; paws too small and delicate ; toeing in or out
缺點(不合格) :八字腳、腳趾軟並且張開;腳墊過大或者笨拙;腳墊過小或者細致細巧;
足尖在內或者在外。
In the cogeneration system, heat and power affect each other, heating - pump heating ( air conditioning ) system can not satisfy the peak load very well
熱電聯產系統熱電相互牽連,熱泵供暖(空調)系統不容易很好地滿
足尖峰負荷,鍋爐供暖系統供熱中天然氣燃料構成的成本過高。
With fast development of our country " s gas industry and air ' s increasingly serious contamination in city, using gas instead of coal and supplying energy in high efficiency and cleanliness has become necessary way in city. there are different problems in the current heating ( air conditioning ) systems. in the cogeneration system, heat and power affect each other, heating - pump heating ( aie conditioning ) system can not satisfy the peak load very well, the cost of gas fuel in boilor heating sestem is so high. the high generating efficiency of the diesel - engine two - sourse heating ( air conditioning ) systems is limited in range of 100kw - 1000kw, the heating scope is so limited. combined cycle of two sourse heating ( air conditioning ) system is most suitable selection to buesness community with big scope my paper aim at this syetem ' s primary question when it is applied in our country - - - - bringing project into execution and technology economy feasibility and off - design performence, combined with a certain demonstrating project in beijing buesness community, going along with calculating and analyzing, drawing out some efficient datas and conclusions, based on this, bringing out primary alements affecting combined cycle of two sourse heating ( air conditioning ) system " economics
熱電聯產系統熱電相互牽連,熱泵供暖(空調)系統不容易很好地滿
足尖峰負荷,鍋爐供暖系統供熱中天然氣燃料構成的成本過高,內燃機雙源供暖(空調)系統的高發電效率僅限於100kw - 1000kw負荷范圍,供熱面積有限。對于大面積的商業園區、居民小區,燃燒天然氣的燃氣-蒸汽聯合循環雙源供暖(空調)系統是最佳選擇之一。本論文針對該系統在我國應用時的主要問題- - -方案的技術實施與技術經濟可行性,結合北京某一商業園區示範工程,進行了系統的計算與分析,得到了有效的數據與結論,在此基礎上,提出影響聯合循環雙源供暖(空調)系統經濟性的主要因素,並進行敏感性分析,得出有益的結論;最後通過各種供暖方案的比較分析回答了某些人對該系統的疑慮和不解,並指出系統的優化方向。
The outsole wraps up around the upper of the shoe, providing a secure and stable ride, while increasing toe and upper durability
外底包裹了鞋的上部分,保證在運動中可以提供保護和穩定性,並且提高了鞋的
足尖和鞋面的耐穿性。
The third act passed off as usual. mesdemoiselles noblet, julie, and leroux executed the customary pirouettes ; robert duly challenged the prince of granada ; and the royal father of the princess isabella, taking his daughter by the hand, swept round the stage with majestic strides, the better to display the rich folds of his velvet robe and mantle
諾白麗尤莉和羅絲三位小姐照例表演了一段
足尖舞我伯特當然要向格里那達王子挑釁伊貝拉公主的父王牽住了他女兒的手,跨著威嚴的舞步在舞臺上疾馳了一周,充分表演出了他那天鵝絨的長袍和披風在疾馳時飄飄欲仙的姿態。
Owing to the very judicious plan of dividing the two acts of the opera with a ballet, the pauses between the performances are very short, the singers in the opera having time to repose themselves and change their costume, when necessary, while the dancers are executing their pirouettes and exhibiting their graceful steps
義大利的歌劇處理得非常適當,每兩幕正戲之間插一段歌舞,所以落幕的時間極短。當正戲的歌唱演員在休息和換裝的時候,則由舞蹈演員來賣弄他們的
足尖舞和表演他們這種爽心悅目的舞步。
Helps raise the foot after toe off, thus eliminating everyday obstructions such as doorsteps, carpets and pavements
可幫助提高
足尖,以越過門檻、地毯或行人道臺階等。
And it met, and surpassed, the mark at 53 feet, 10 inches long and 26 feet, 112 inches wide from heel to toe
經初步測量,這只襪子從腳後跟到
足尖處的長度與寬度至少分別達到了16 . 4米和10 . 77米。
Between 1983 and her passing in 1996 wu ying - hua was the highest ranked instructor in the wu family system. her sons continue teaching and today manage the shanghai school as well as schools in europe
在訓練中,要先做好準備動作,活動開膝關節,盤架子的過程中,曲膝不超過
足尖,上下相隨,保持鬆弛,利於氣血暢通。
Indeed , by standing on tiptoe i could catch a glimpse of some of the peaks of the still bluer and more distant mountain ranges in the northwest , those true - blue coins from heaven ' s own mint , and also of some portion of the village
真的,踮起了
足尖來,我可以望見西北角上更遠、更藍的山脈,這種藍顏色是天空的染料製造廠中最真實的出品,我還可以望見村鎮的一角。
In 1996 he was invited to found the bilibala physical theater and served as the artistic director. from 1998 to 2000, he participated the multi - media dance educational programme co - organized by leisure and cultural services department and hong kong ballet served as coordination officer. in 1999, he founded dance home and fully engaged in education and promotional work on modern dance
1994年加入城市當代舞蹈團二團; 1996年應邀創辦霹靂啪勒身體劇場任藝術總監; 1998年至2000年參與前臨時區域市政局與香港芭蕾舞團聯合主辦的多媒體舞蹈教育計劃舞在新界1999和舞在新界2000 ,任統籌主任; 2001年參與康樂及文化事務署主辦的文化大使計劃、香港芭蕾舞團策劃及製作的足尖變奏齊齊樂任統籌。