查询词典 ping-pong ball
- 与 ping-pong ball 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
I like to play tennis and play Ping-pong ball .
我喜欢玩网球和乒乓球。
-
With a round , hollow ball hypnotically bouncing from one end of the table to the other , and taking off with almost rhythmic clicks to signal that a pass or hit has been made , ping pong seems to be the best alternative to an afternoon nap .
乒乓球是一个伟大的方式享受懒惰夏季下午,或任何下午在今年在所有。
-
Wash my clothes very cleanly and I have plap ping Pong foot ball. The end I do myhomework and go to bed!
这样做虽然不及参考答案水平高,但降低了书面表达的难度,既能提高书面表达的信心,也能提高书面表达获得更高考分的可能性。
-
6Promote health is bank the employee attend athletics to toughen of main purpose, the most suitable match the item that the bank employees athletics toughens to is a domestic expenses workout machine, is secondly small ball, include a ping-pong, badminton, tennis; Next is swimming, jogging...etc.
6增进健康是银行员工参加体育活动的主要目的,最适合银行员工体育活动的项目是家用健身器,其次是小球类,包括乒乓球、羽毛球、网球;接下来的是游泳、慢跑等。
-
Get out the hammer and make some rubble! Mix up the sizes, ranging from the sisze of a pea to the size of a ping pong ball, through that on the bottom, and you've created a "rubble bottom", which provides aesthetic interest, foraging for your wrasses and Centropyge angels, protection for larval fishes, and a great surface for attaching coral frags and zoanthids! Don't believe the hype about "detritus accumulation". If you have good husbandry habits, brisk water movement, and some small fishes, there should be little to worry about.
找个锤子敲些碎石,从碗豆大小到乒乓球那么大,以造成反差,然后放在底沙上,这些碎石会带来一种海底世界的感觉,同时龙鱼和仙鱼都会有地方睡觉,并且能够保护仔鱼,大量的石头同时也能够让纽扣碎片很容易的粘上去,不要相信底沙会带来垃圾堆积说法,如果你能用水流轻轻的冲一下,还加上一些小鱼清洁,这绝对不是我们要担心的
-
Space Foosball is a modern-day spin on the old foosball table does away with those mechanical men and ping pong balls and replaces them with pixels and a physics engine.The cool thing about the virtual foosball players and ball is that they're still controlled by the same sort of spinny axle controllers that traditional foosball machines use.The Space Foosball system was developed using the Virtual Physics CGI engine developed by Young J.
原文大意说,现在科技水平突飞猛进,连最原始的足球桌都更新换代推出了电子化可视足球桌……这个牛逼哄哄的东西从操作方式、比赛规则到娱乐性与旧式的足球桌是完完全全一摸一样哦,唯一的区别就是它是电子的……发明这东西的人一定是闲的蛋疼了吧。
-
Blit Pong - An example of the classic game pong...it uses bitblt for displaying and can be very fun.
Blit Pong是经典的pong游戏的一个例子。它使用bitblt进行显示,非常有趣。
-
The effect of tribology factors on bearing vibration is studied experimentally. AR model and WPT are used to processing the normal arid abnormal signals. The results are as follows:1. The vibration of ball bearings is caused by the tribology action of contact pairs of ball and ring races and has the essential of tribo-dynamics. Any factors affecting the tribology characteristics of contact pairs will affect vibration and noise of bearings consequently.2. Vibration characteristics of bearing keep almostly unchanged with the increasing of axial load expecting the increasing of nature frequencies. When radial load increasing with axial load unchanged, nature frequencies keep unchanged but some new vibration peaks appears in the spectrum.3. Vibration amplitudes are damped and nature frequency are enhanced with sufficient lubrication. Vibration and noise of bearings increase obviously and roar can happen and the contact surfaces scratch slightly under insufficient and unclean lubrication state. Bearing will be disabled in a few minutes without any lubrication.4. Bearing vibration is unstable under low speed. With the speed increasing, the vibration become stable and natural frequencies increase slightly but the amplitudes increase apparently.5. Bearing vibration can be excited only by some harmonics ofwaviness without lubrication and by all harmonics with lubrication based on the theoretical analysis.6. The nature frequencies of ball bearings decrease with the increasing sizes. When international clearance increasing, nature frequencies decrease in radial and increase in axial and angular and the amplitudes increase in radial and decrease in axial and angular. When the number of balls increasing, nature frequencies increase and amplitudes decrease. When the pitch diameter increasing, axial nature frequency increase and others nearly keep no change. When outer race groove curvature radius increasing, nature frequencies increase in radial and decrease in axial and angular and amplitudes keep no change in radial and increase in axial and angular. When inner race groove curvature radius increasing, nature frequencies decrease and amplitudes increase.7. The distortion in amplitude and frequency components of bearing vibration signals picked up by the present probe measurement method is founded and right conclusions cannot be achieved by the signals. When accelerometer is rigidly screwed with steel stud onto a flat outer surface of a ball bearing, vibration signal can be got without distortion and the reliability of research on bearing vibration is assured.8. AR model is suitable for large samples of bearing vibration signals, square root of length of samples can be used as the upper limitation of order determination and the FPE order selection criterion is effective. Many advantages of AR spectrum are founded over the classical based on FFT.9. Time-Frequency analysis is necessary for abnormal noise of ball bearings. WPT overcomes the principle shortcomings of STFT and proved to be a best tool to process the abnormal signals.
理论分析和试验研究表明: 1球轴承振动是钢球—滚道接触副中的各种摩擦学作用引起的,具有摩擦动力学的本质,任何对接触副的摩擦学特性有影响的因素都将对球轴承的振动和噪声特性产生影响; 2中心轴向载荷作用下,载荷增大使球轴承的固有振动频率升高,载荷越大同样的载荷增幅引起的频率升幅减小,足够大的中心轴向载荷作用下载荷的变化对球轴承振动的频率特性不会产生明显的影响; 3轴向和径向联合载荷作用下,径向载荷不大时球轴承振动的固有频率基本不变,但是可能引起变刚度激励的非线性振动,出现新的频峰,过大的径向载荷将使部分钢球脱离接触,使球轴承的振动和噪声呈现不稳定状态; 4润滑对球轴承的振动和噪声特性有重要的影响,良好的润滑对振动有明显的抑制作用,润滑不充分时,振动和噪声的水平会有明显增高,一定条件下还会激发接触副中的谐振,发出啸声,造成接触表面的伤害,无润滑干接触时,短时的运转就会损伤接触副表面,使振动和噪声迅速增大,并随时可能引发严重的磨损和卡滞失效;接触副润滑良好时,油膜的"刚化效应"使球轴承振动的固有频率有所提高,润滑剂中含有弥散性污浊时,振动的幅度总体升高,但弥散性污浊不会改变球轴承振动的频率特性;浙江大学博士学位论文:球轴承振动的研究 5低速时,球轴承振动的基本特征呈现不稳定状态,随着转速的提高,球轴承振动的频率特性趋于稳定,固有频率频峰升高; 6理论分析表明,干接触时钢球和滚道表面波纹度的某些谐波分量能激励球轴承的振动,振动的幅值与谐波幅值成正比,实际球轴承中钢球的分布不可能完全均匀,波纹度的激励作用会随时发生;润滑接触的分析表明,波纹度的任意谐波分量均能激励球轴承的振动; 7球轴承的几何和结构参数分析表明,球轴承尺寸越大,径向、轴向和角振动的固有频率越低;钢球中心圆直径增大,球轴承的径向和轴向振动的固有频率基本不变,角振动的固有频率有所上升,振动的幅频特性基本不变;径向游隙加大使球轴承的径向振动固有频率降低,轴向和角振动的固有频率有所升高,径向振动幅频特性的幅值升高,而轴向和角向降低;钢球的数量增多使球轴承振动的固有频率上升,幅频特性的幅值下降,径向振动的幅值下降最为明显;外圈沟曲率半径系数增大使球轴承径向振动的固有频率升高,轴向和角振动的固有频率降低,径向幅频特性基本不变,轴向和角向幅频特性幅值升高;内圈沟曲率半径系数增大使径向、轴向和角振动固有频率均下降,振动幅频特性的幅值均有升高; 8试验对比表明,传感器采用探针式安装时,由于探针接触副接触特性的影响,钡(量得到的球轴承振动信号有失真,采用专门设计和制作的试验球轴承,以固定式安装加速度计,首次测量得到了球轴承振动的真实信号,通过对振动信号的分析,验证了球轴承振动的理论模型; 9)基于时间序列分析的AR模型适用于大样本球轴承振动信号的分析,以样本长度的均方根值作定阶上界,FPE做判阶准则,给出的AR谱光滑,频率分辨率高,是球轴承振动分析的简便而可靠的手段; 10以时频域分析的小波包变换分析球轴承异音信号能够比较好地定位和聚焦异音发生的时间,时间间隔,频率范围,同样是球轴承振动分析的可靠的手段,可用作球轴承故障诊断技术。
-
This research presented a new guide mechanism and belt driving theory of the abrasive band polishing for inner aperture, satisfied the driving requirement of abrasive belt leading smoothly into grinding area, realized the band grinding and band polishing of inner aperture, developed a abrasive band polishing headstock for of the ball track of ball bearing and roller bearing individually adopting a way of curvature concave oscillating and vibrating, researched the process regular and fundamental process method and parameter of abrasive band polishing of ball track. The results of experiments and tests showed that the surface roughness of ball track by abrasive band polishing can reach Ra0.02μm, and the original geometric cross section shape precision of ball track can be kept.
本项研究提出了砂带研抛内孔的新型导引机构和传带原理,满足了砂带平稳导入内孔磨削区的传动要求,实现了内孔的砂带磨削和研抛;研制了采用弧面摆动和振动方式分别用于球轴承滚道和滚柱轴承滚道研抛的砂带研抛头架;研究了轴承滚道砂带研抛的工艺规律和基本工艺方法、工艺参数;实验测试结果,轴承滚道砂带研抛的表面粗糙度达Ra0.02μm,研抛过程保持了滚道的原始几何截面形状精度。
-
On the Zong say, can see, for the N ball but speech, because ball of successively different, the all leading of the ball of each number ball is different, and, after depending ball of all rate will one by one in order become big.
综上所述,可以看到,对于出N个号球而言,由于出球的先后不同,每个号球的出球的概率是不同的,而且,靠后出球的概率会依次变大。
- 相关中文对照歌词
- Ball Out
- Ball Baby Ball
- Ball Baby
- Swap Meets Louie
- Ball Wit Us
- Ball
- Ball Tongue
- Dirty Ball
- On Top Of The World
- 8 Ball
- 推荐网络例句
-
But this is impossible, as long as it is engaging in a market economy, there are risks in any operation.
但是,这是不可能的,只要是搞市场经济,是有风险的任何行动。
-
We're on the same wavelength.
我们是同道中人。
-
The temperature is usually between 300 and 675 degrees Celsius.
温度通常在摄氏300度到675度之间。