It was probably not until the 1880′s that man , with the help of a more advanced steam locomotive, managed to reach a speed of one hundred mph.

大約直到19世紀(jì)80年代，在更先進(jìn)的蒸汽機(jī)的幫助下91黄色毛片，人類才設(shè)法達(dá)到了一百英里/小時(shí)的速度亚洲欧美视频网站。

The first steam locomotive, introduced in 1825, had a top speed of only thirteen mph, and the great

1825年推出的第十輛蒸汽機(jī)最大速度每小時(shí)僅為13英里日逼小黄片，而那時(shí)的大帆船行駛得更慢，還不到這個(gè)速度的一半亚洲浮力第一页。

The first steam locomotive could have a top speed of only thirteen mph and the great sailing ships of the time labored along at less than half that speed.

第一列蒸汽火車最快每小時(shí)只有13英里亚洲免费送视频，那時(shí)的大船還不到這個(gè)速度的一半。

When we do the math, we discover that an averagely decent streamliner with a drag coefficient of .3 can go farther than 1021 km in 24 hours on only 110 watts of human power (enough effort to go 15 kph or 9 mph on a mountain bike).

當(dāng)我們這樣做數(shù)學(xué)欧色色色，我們發(fā)現(xiàn)你懂网站在线，一個(gè)平均體面streamliner的風(fēng)阻系數(shù)在0.3可以做得比一千零二十一公里在24小時(shí)內(nèi)就只有110瓦的人力（足夠的努力去15公里或9英里每小時(shí)在山地自行車）。

The vehicle is a sixteen foot streamliner powered by a single Sportster engine, and averages just over 265 mph.

他駕駛著配備Sportster發(fā)動(dòng)機(jī)的16英尺長(zhǎng)Streamliner摩托車国产精品黄色网，創(chuàng)造了265 英里/小時(shí)的平均時(shí)速欧美色欧美亚洲重口二区。

For example, Steve Wittman gained some 10 mph on his " Tailwind " with a "sharp" original leading edge, whereas on a Zodiac CH-600 , which already had a blunt nose, the gain was negligible.

舉例來(lái)說(shuō)欧美激情久久综合，史蒂夫wittman取得了一些10英里每小時(shí)對(duì)他的"順風(fēng)"與"夏普"原來(lái)領(lǐng)先的優(yōu)勢(shì)国产乱论色网站，而在一個(gè)生肖的CH - 600 ，其中已經(jīng)有一個(gè)鈍的鼻子人人干黄色网站，增益是微不足道久久精品免费视频60-70。

A TGV train recently set the world record for high-speed rail travel at 357 mph.

甲高速列車最近成立的世界紀(jì)錄的高速鐵路旅行357英里每小時(shí)）。

The effort will be led by Karl Kieburtz, MD, MPH, of the University of Rochester in New York, and Barbara C. Tilley, Ph.D., of the Medical University of South Carolina in Charleston, and the patients will be seen by movement disorders specialists at the NET-PD sites across the United States and Canada.

這項(xiàng)努力將率領(lǐng)由卡爾kieburtz 欧美涩，醫(yī)學(xué)博士英里黄色视频免费在线无限观看，美國(guó)羅切斯特大學(xué)，在紐約和芭芭拉長(zhǎng)tilley 国内一级A片久久，博士国产狼友，醫(yī)學(xué)南卡羅來(lái)納大學(xué)，在查爾斯頓激情亚洲AV无码日韩色，和病人將被運(yùn)動(dòng)障礙專家的凈鈀地點(diǎn)橫跨美國(guó)和加拿大国产精品香蕉AV。

"The Athenian trireme was about 120 ft (37 m) long, and was rowed by 170 oarsmen seated in three tiers along each side; it could reach speeds of more than 7 knot s (8 mph, or 13 kph)."

雅典人的三層劃槳戰(zhàn)船長(zhǎng)約37公尺，由170名槳手在三層高的船兩邊劃動(dòng)久久精品久久久久久久久，速度可達(dá)到7海浬精品久久99国产精品；小時(shí)(即13公里；小時(shí))国产区在线。

In its maiden flight last August, WASP flew continuously at 30 mph for 1 hour, 47 minutes.

在 8月的首航中久久久久久黃色網站，"黃蜂"以30英里/小時(shí)的速度連續(xù)飛行了1小時(shí)47 分鐘。