fast [fɑ:st]

fast的基本解释

adj.

紧的, 快速的, 耐久的, 牢固的, 忠诚的

• They developed a fast dye.
• 他们研制了一种不褪色的染料。

• They are fast friends.
• 他们是挚友。

• He did a fast job.
• 他很快就干完了。

• He is a fast reader.
• 他读书速度很快。

adv.

很快地, 紧紧地, 彻底地

• He made the wire fast to the metal ring.
• 他把这根铁丝紧系在金属圈上。

vi.

绝食, 斋戒

n.

绝食, 斋戒

fast的同义词

adj. solid · stable · steady · rapid · hasty · dependable · swift · sure · firm · speedy · quick

v. starve

fast的反义词

adj. slow · sluggish · tardy

adv. slowly · tardily · slow

与fast相关的词组

make fast：把...拴紧(关紧), 把...打上结

与fast相关的情景对话

休闲娱乐 / Skating-(滑冰)

A:

Hey John, nice skates. Are they new?

你好，约翰，冰鞋真漂亮。新的吗？

B:

Yeah, I just got them. I started playing ice hockey in a community league. So, I finally got myself new skates.

是呀，我刚买的。我开始在一个社团打冰球。所以，终于给自己买了一双新的冰鞋。

A:

What position do you play?

你打什么位置？

B:

I’m a defender. It’s a lot of fun. You don’t have to be able to skate as fast on defense.

打后卫。真是很有趣。而且打后卫溜冰速度不用很快。

A:

Yeah, you’re a pretty big guy. I play goalie, myself.

是的，你是个大块头，我是守门员。

B:

Oh, yeah? Which team?

噢，是吗？哪一个队？

A:

The Rockets.

火箭队的。

B:

Really? I think we play you guys next week. Well, I have to go to practice. See you later.

真的吗？我想下个星期是我们和你们比赛，好了，我要去练习了，以后见。

A:

All right, see you later.

好的，再见。

校园生活 / Learning English-(学英语)

A:

Ralph, do me a favor, will you?

拉尔夫，帮我一个忙，好吗？

B:

That all depends on what it is.

这要看帮什么忙。

A:

This is the proble, I'm still having trouble with my English.The instructor suggests that I ask an American to help me by telling me how he says the things I say which just aren't English.I wanted you to be the American.

我有个困难。我的英语仍然遇到麻烦。老师建议我请一位美国人帮助，要他告诉我，我说的那些根本不像英语的话应当怎样说。我想要你做这个美国人。

B:

What good'll it do?You never speak English unless you absolutely have to.I'll help you if you promise to speak noting but English all the time.

这有什么用？你除了非说不可的时候，你从来不说英语。好吧！我跟你达成一个协议：如果你保证在任何时候除了英语外什么也不说，我就帮助你。

A:

All right. Maybe I'll do that.It's the only way I'll be able to learn English fast enough, I guess.

好吧，也许我能办得到。我想这是我能迅速学会英语的唯一方法。

fast所属的单词分类

Driver / 驾驶 [219]

yellow light  ·  van pool  ·  u-turn  ·  truck stop  ·  switchbacks  ·  speed bump  ·  S-curve  ·  road trip  ·  road rage  ·  Road Closed

Food & Eating / 食物与饮食 [541]

salsa  ·  spork  ·  prime rib  ·  pork chops  ·  mochi  ·  meatloaf  ·  lima beans  ·  hot sauce  ·  dandelion greens  ·  caramel apple

Post / 邮政 [99]

postal code  ·  book rate  ·  po box  ·  mail truck  ·  post office box  ·  commemorative stamp  ·  advertisements  ·  zip code  ·  post office  ·  uncanceled

与fast相关的网络例句 [注：此内容来源于网络，仅供参考]

Angular spectral is spectral value map formed by estimating semblable coefficients of fast and slow shear wave or the variation of amplitude ratio of fast and slow shear wave with times and angles at a specified space point based on semblable theory of fast and slow shear wave, the angle value of this space point at a given time can be got by picking the maximum of angular spectral; the study reveals that fast and slow shear wave with different polarization direction should be separated using different rotation formula, eight formulas of separating fast and slow shear wave using clockwise rotation and counterclockwise rotation have been derived, and gained energy assignment rule and phase coincidence rule, in real data estimation, the rotation formula used for separating fast and slow shear wave can be uniquely determined on the two discriminating rules. On the basis of semblable theory of fast and slow shear wave, the delay time corresponding to the maximum of semblable coefficients at a specified point in a given time window is the delay time of fast and slow shear wave, delay time section of fast and slow shear wave can be got by moving space point and smoothing time window. The vertical variation values of delay time of fast and slow shear wave reflect the effect degree of vertical fractured reservoir on fast and slow shear wave which is defined as anisotropic coefficient, and section map of anisotropic coefficient can be obtained.

角度谱就是利用快慢横波的相似性原理，在某一空间点求出快慢横波的相似系数或快慢横波的振幅比值随着时间和角度的变化而形成的谱值图，拾取其极大值就得到该空间点某一时间的角度值；在研究中发现分离不同偏振方向的快慢横波应该采用不同的旋转公式，推导出了利用顺时针旋转和逆时针旋转分离快慢横波的八个公式，并给出了能量分配准则和相位一致性准则两个判别准则，在实际计算中利用这两个判别准则能唯一地确定分离快慢横波的旋转公式；根据快慢横波的相似性原理，在某一给定点和给定时窗内最大相似系数对应的延迟时间就是快慢横波的延迟时间，随着空间点的移动和时窗的滑动就可以得到快慢横波延迟时间的剖面图；快慢横波延迟时间与慢横波传播时间的比值定义为裂缝密度，并求出了裂缝密度剖面图；快慢横波延迟时间纵向上的变化值的大小反映了纵向上裂隙层对快慢横波影响的大小，定义为各向异性系数，并求出了各向异性系数的剖面图。

In this paper, the theory, algorithm, and experiment of automatic object detection and tracking are studied in depth. It is firstly pointed out that the essential of Mean Shift method is a special Newton-Gaussian method. A new method named Fast Mean Shift is established to stretch the conservative step of Mean Shift method. The convergence and validity of this new method are proved in theory. And it is also proved that the convergence speed of Fast Mean Shift is faster than that of Mean Shift. The contrast experiments of searching the maximum possibility density of random of data sets in plane and 3D space are done. The results show that this new method can reduce the iterations greatly. A new object tracking method based on Fast Mean Shift is built to improve the object tracking performance, which is shown in the face tracking experiment with the tennis sequence provided by the Ohio State University, and the car tracking experiment with the car sequence provided by Kalsruhe University. The face trcking experiment with highly noised images show that the object tracking method based on Fast Mean Shift has strong anti-jamming ability. A new fast color object detection technology based on characteristic color is established, which use characteristic color distribution to compute the characteristic color vector of any area in an image quickly. With the high performance search method, the fast object detection is achieved. At last, using object tracker based on Fast Mean Shift and color object detector based on characteristic color with the Kalman filter, PID controller, searial communication and other technologies, automatic object detection and tracking system with control system is built. The availability and anti-jamming ability of this system are verified by some object detection and tracking tests in different scenes.

本文对目标自动识别与跟踪进行了理论、计算、试验三方面的深入研究，主要包括：首次指出了目标跟踪技术中常用的均值迁移方法的本质为一种特殊的高斯-牛顿方法，改进了均值迁移方法步长取值保守的弱点，建立了快速均值迁移方法，证明了该方法的收敛性、有效性以及收敛速度优于均值迁移方法；进行了平面和3维随机分布数据集的最大概率密度搜索对比试验，试验结果表明，快速均值迁移方法大大减少了迭代次数；建立了基于快速均值迁移的目标跟踪方法，利用俄亥俄州立大学提供的乒乓球序列图像和卡斯鲁厄大学的汽车序列图像，对人脸和汽车目标跟踪性能分别进行了对比试验，并进行了高噪声人脸图像目标跟踪试验，结果表明，基于快速均值迁移的目标跟踪方法有效提高了目标跟踪性能，具有很强的抗干扰能力；建立了一种新型彩色目标自动识别方法，采用特征色彩分布函数实现了对任意图像区域特征色彩矢量的快速计算，建立了高效的搜索方法，实现了彩色目标的快速识别；将基于快速均值迁移方法的目标跟踪方法、基于特征色彩的目标识别方法与卡尔曼滤波、PID控制、串行通讯等技术结合，建立了带有控制系统的快速目标自动识别与跟踪系统，并在不同场景下进行了目标自动识别与跟踪试验，验证了快速目标自动识别与跟踪系统的有效性和抗干扰能力。

Ran as fast as he could; needs medical help fast; fast-running rivers; fast-breaking news; fast-opening (or fast-closing) shutters.

以他最快的速度奔跑；需要迅速起效的医疗；流得快的河流；迅速传开的消息；开得快的快门。

与fast相关的网络解释 [注：此内容来源于网络，仅供参考]

Fast：快

后来他把乐队的贝司手赶走,让原来的鼓手去弹贝司,自己坐到了鼓架前,开玩快节奏的硬核摇滚,后来他们的节奏快得连乐队的名字都改成了"快"(Fast). 但戴夫最欣赏的鼓手还是"莱德.泽普林"的约翰.博纳姆(JohnBonham),

Fast：快速

3、热机启动时,应把节流阀置于"快速"(FAST)位置. 5、电动启动时,放置发动机开关到"起动"(START)位置,发动机即处于启动状态,若在5s内未能启动,应把开关旋离"起动"位置,等待10s以上再重新启动. 6、冷机启动时,当发动机变热后,

Fast：快速的

答(P):我们的方法是做大量的实验,快速发布并且不断进行改进. 我们尽早的(early),快速的(Fast)更新软件,并且认真收取用户的反馈. 问:优秀(Good)测试人员和卓越(Great)测试人员的区别是什么?

Fast：法斯特

法斯特(fast)氧化锆研磨仪 是我公司08年推向市场的高端义齿加工设备,经过1年的推广在国内市场占有率是最高的,也已经出口到多个国外技工实验室. 产品的加工精度经过多家用户的验证完全达到德国,意大利进口设备的水平,

Fast：abbr. functional assessment staging; 功能性评估量表