speed n. 1.快,迅速。 2.速率,速度。 3.(汽車(chē)的)變速器,排擋。 4.(膠片,照相紙)感光速度。 5.〔古語(yǔ)〕興隆,成功。 6.〔美國(guó)〕甲基苯異丙胺(類(lèi)毒品)。 7. 〔美口〕(大音量和強(qiáng)節(jié)奏的)“重金屬”(電子)搖滾樂(lè) (=speed-metal)。 More haste, less [worse] speed. 越急越慢,欲速反遲。 The ship has a speed of 30 knots. 這條船時(shí)速30海里。 Let's accelerate the speed of our community construction. 讓我們加快我們社區(qū)建設(shè)的速度。 a top speed 最大速度。 a speed of escape [escape speed] 【火箭】第二宇宙速度,逃逸速度〔克服地球引力的速度〕。 a horse of speed 快馬。 (at) full speed=at the top of one's speed 用全速,開(kāi)足馬力。 make speed 趕快,趕緊,加快。 put on full speed 用全速,開(kāi)足馬力。 with speed 迅速,趕快。 wish (sb.) good speed=wish good speed (to sb.) 祝…成功。 with all speed 用全速,開(kāi)足馬力。 vt. (sped , speeded) (常用 speeded) 1.催,使趕快,促進(jìn),快速送傳。 2.〔古語(yǔ)〕使成功,使成就,使興隆。 3.祝愿成功,祝一路平安。 4.調(diào)節(jié)速度,使保持一定速度。 Speed our boat forward. It's getting dark. 使我們的小船快速前進(jìn),天黑起來(lái)了。 It's time we speed the parting guests. 現(xiàn)在是我們?nèi)ハ螂x別的客人們祝福一路平安的時(shí)候了。 vi. 1.迅速前進(jìn),快行 (along down up across)。 2.進(jìn)行;過(guò)日子。 3.〔美國(guó)〕(汽車(chē)司機(jī))用規(guī)定以上的速度駕駛。 4.〔古語(yǔ)〕成功,興隆。 The car sped directly to the village. 汽車(chē)一直地疾駛進(jìn)入村子里。 I should like to know how you speed. 我很想知道您的好情況。 God speed you! 祝成功! speed ill 不順利。 speed up 加快(機(jī)器等的)速度;使加緊做 (sth.) (speed up the work 加緊工作)。 speed well 順利。
If an angle is changing with time, we may define an angular speed . 如果一個(gè)角隨時(shí)間而變化,我們就可確定一個(gè)角速率。
Simulating calculation and analysis of the instantaneous angular speed in a diesel engine 柴油機(jī)瞬時(shí)轉(zhuǎn)速的仿真計(jì)算與分析
The model considers as its states the helicopter vertical and horizontal velocities , vertical and horizontal displacements , and the rotor angular speed 其中的狀態(tài)變量包括直升機(jī)的水平和垂直速度、水平和垂直位移以及旋翼轉(zhuǎn)速。
The electro - hydraulic proportional control law is given . the laws of tracking control of displacement and speed of aircraft as well as tracking control of angle and angular speed of belt wheel are designed by means of state feedback linearization and quadratic performance index linear optimal control method . the robustness of the designed systems is analyzed , and arresting processes are simulated 給出了電液比例控制規(guī)律;利用狀態(tài)反饋線(xiàn)性化及二次型性能指標(biāo)線(xiàn)性最優(yōu)控制方法分別設(shè)計(jì)了系統(tǒng)跟蹤控制飛機(jī)位移與速度以及跟蹤控制帶輪轉(zhuǎn)角與角速度的非線(xiàn)性控制規(guī)律;對(duì)所設(shè)計(jì)的攔阻系統(tǒng)進(jìn)行了魯棒性分析及攔阻過(guò)程仿真,仿真結(jié)果表明,通過(guò)選取適當(dāng)比例系數(shù)或控制權(quán)系數(shù),兩種控制系統(tǒng)的控制效果及魯棒特性均優(yōu)于新型飛機(jī)攔阻系統(tǒng)。
In this study , the effect of rotating elliptical inner cylinder on the instability of flow field , the relationship between azimuthal wave speed and the angular speed of inner cylinder , and the so - called ' hysteresis ' will also be investigated experimentally 本文主要目的除了藉由實(shí)驗(yàn)比較橢圓與圓形截面內(nèi)柱兩種系統(tǒng)加速過(guò)程中不穩(wěn)定發(fā)生時(shí)機(jī)、流場(chǎng)流況的差異外;對(duì)于所謂的遲滯現(xiàn)象于兩系統(tǒng)中的發(fā)生過(guò)程亦將探討,此外內(nèi)柱幾何形狀所造成高階不穩(wěn)定于圓周方向的波形相速度變化,也是本文的探討重點(diǎn)。
This paper introduces a method of calibrating and processing angular speed fluctuation in ni sampling system - pxi - 6281 , it accomplishes the acquisition of angular speed fluctuation by distortion of signal , analyzing fundamental wave , high order harmonic of angular speed feedback signal and calculating the amplitude ratio of base wave and high order harmonic 摘要利用ni的pxi - 6281高速數(shù)據(jù)采集卡來(lái)完成角速度波動(dòng)信號(hào)的采集,借鑒信號(hào)失真度的概念,分析角速度反饋信號(hào)的基波和高次諧波大小,求取高次諧波與基波幅值比,作為角速度波動(dòng)率。
Fully utilizing the character of the nonholonomic system , we control the movement of the trailers with two inputs - the velocity and angular speed of the tractor . after establishing the kinematics model , we get the optimal steering gain by analyzing the figures of path following with different steering gain 建立運(yùn)動(dòng)學(xué)模型后,通過(guò)對(duì)不同操舵系數(shù)下的軌跡跟蹤仿真圖分析,得到了最佳的操舵系數(shù),根據(jù)這個(gè)系數(shù)我們?cè)O(shè)計(jì)了操舵機(jī)構(gòu),結(jié)合三點(diǎn)式的操舵模型對(duì)操舵原理進(jìn)行了說(shuō)明。
The position of the trajectory depends on the ratio of bead - to - fluid density , the ratio of bead - to - disc radius and the reynolds number which describes the operating conditions of the stirred media mill . by means of the beads motion in the calculation domain , the influence of different comminution operation parameters on comminution results is discussed . those parameters mainly include the beads size , beads density , stirrer angular speed and liquid density and viscosity etc . those parameters are optimized so that the comminution results are improved 通過(guò)研究研磨介質(zhì)在計(jì)算域內(nèi)的運(yùn)動(dòng)來(lái)探索不同的粉磨技術(shù)參數(shù)對(duì)粉碎效果的影響,這些粉磨技術(shù)參數(shù)主要包括磨介尺寸、磨介密度、攪拌盤(pán)速度、液流密度及粘度等;通過(guò)優(yōu)化這些參數(shù)來(lái)達(dá)到提高攪拌盤(pán)式攪拌磨粉磨效果的目的。