首页
登录
职称英语
The word horsepower was first used two hundred years ago. James Watt had made
The word horsepower was first used two hundred years ago. James Watt had made
游客
2023-09-30
13
管理
问题
The word horsepower was first used two hundred years ago. James Watt had made the world’s first【B1】______used steam engine. He had no way of telling people【B2】______how powerful it was, for at that time there were no units for measuring power. Watt decided to【B3】______how much work one【B4】______horse could do in one minute. He called that unit one horsepower. With this unit he could measure the work his steam engine could do. He【B5】______that a horse could lift a 3,300-pound weight 10 feet into the air in one minute. His engine could lift a 3,300-pound weight 100 feet in one minute. Because his engine did ten times as much work as the horse, Watt called it a ten horsepower engine. [br] 【B2】
The word horsepower was first used two hundred years ago. James Watt had made the world’s first widely used steam engine. He had no way of telling people exactly how powerful it was, for at that time there were no units for measuring power. Watt decided to find out how much work one strong horse could do in one minute. He called that unit one horsepower. With this unit he could measure the work his steam engine could do. He discovered that a horse could lift a 3,300-pound weight 10 feet into the air in one minute. His engine could lift a 3,300-pound weight 100 feet in one minute. Because his engine did ten times as much work as the horse, Watt called it a ten horsepower engine.
选项
答案
exactly
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3059761.html
相关试题推荐
OnehundredandthirteenmillionAmericanshaveatleastonebankissuedcred
OnehundredandthirteenmillionAmericanshaveatleastonebankissuedcred
OnehundredandthirteenmillionAmericanshaveatleastonebankissuedcred
Thewordhorsepowerwasfirstusedtwohundredyearsago.JamesWatthadmad
Thewordhorsepowerwasfirstusedtwohundredyearsago.JamesWatthadmad
Thenumberofpeopleinvitedtothemeeting______twohundred,butanumberof
ThemostimportantcityofCapeVerdeis______.[br]FivehundredyearsagoCa
Overfivehundredyearsago,amandesigneda【B1】______machine.Healsoinve
Thewordhorsepowerwasfirstusedtwohundredyearsago.JamesWatthadmad
Thewordhorsepowerwasfirstusedtwohundredyearsago.JamesWatthadmad
随机试题
Englishisoneoftheworld’smostwidelyspokenlanguages.Thisispartly
Thefollowingareallcorrectresponsesto"Whotoldthenewstotheteacher?"E
Hopesoffindingthemissingclimbersarenowbeginningto______.A、fadeB、dimC
—Ohdear.What’swrong?—Well,I’mmakingsomechangestotheproduct______,tog
[originaltext]M:(5)Yousayyourshophasbeendoingwell.Couldyougivemesom
通过cAMP-蛋白激酶途径发挥作用的激素有()A.心钠素 B.促肾上腺皮质
回弹指数越大,说明:()A.土体卸荷后变形回弹能力越强 B.回弹模量越小
A.肝火犯肺证 B.肝血虚证 C.肝火上炎证 D.肝胃不和证 E.肝肾阴
西医学的急性骨髓炎,相当于中医学的A.疔 B.无头疽 C.
应投/退的发送和接收软压板、出口压板、检修压板应填写在()上。(A)第一种
最新回复
(
0
)