A perfect system has an efficiency of 100%. The ratio of power out to power in defines a system’s efficiency. forward power: the power traveling along the transmission line to the antenna 前端功率:沿传输线传送到天线的功率。 Examples: Measure the forward power. We’re not putting out much...
aPrimary Power supply: Commonly the non-switched 120 Volt Alternating Current source is supplied from a commercial power utility. In non-residential applications, a branch circuit is dedicated to the fire alarm system and its constituents. "Dedicated branch circuits" should not be confused with "In...
therefore,to process some raw materials and obtain the desired product.It is,in fact,of major importance to achieve that goal through employing the easiest,fastest,and most efficient methods.If less efficient techniques
Shaft is mounted on bearings and transmits power through such devices as gears,pulleys,cams and clutches.These devices introduce forces,which attempt to bend the shaft;hence,the shaft must be rigid enough to prevent overloading of the supporting bearings.In general,the bending deflection of a sh...
communicating with people Section 1 Before-class Activities: Getting Things Ready interests and motivation mechanical engineering action plan Dialogue Two Listen and supply the missing words. Then listen and repeat. (Inquiring about a job vacancy) A: H ello! The Personnel Department of the ABC ...
The plan to curb emissions from fossil-fuelled power plants is the most ambitious measure proposed by President Obama in his efforts to tackle climate change. The details of the plan will be laid out by the Environmental Protection Agency. It will give broad flexibility to states to decide how...
Fig.15-1MechatronicsIntegratesElectrical,MechanicalandComputerEngineering Text&Translation Oneofthemostimportantproblemsinmechatronicssystemsdesignisthedevelopmentofsystemarchitecture,e.g.，selectionofhardware(actuators,sensors，devices，powerelectronics,ICs,microcontrollers,andDSPs)andsoftware(environmentandcomputation...
The students return in October for the start of the new academic year.学生于十月返校，开始新学年的学习。objective /əbˈdʒektɪv/ n. 目标；目的 adj. 客观的 You must set realistic aims and objectives for yourself.你必须给自己确定切实可行的目的和目标。botanical /bəˈtænɪkl...
Unit21Mechatronics机电一体化 机电专业英语 徐存善主编 Mechatronics 第 2/42页 上一页 下一页 机电专业英语 徐存善主编 Mechatronics 第 3/42页 上一页 下一页 Text 机电专业英语 徐存善主编 Mechatronicsisthecombinationofmechanicalengineering,electronicengineeringandsoftwareengineering.Thepurposeofthisinterdisciplinary...
FIELD: mechanical engineering. SUBSTANCE: spring unit designed for driving vehicles and power generators is provided with self-controlled electric interrupter that functions to control torque and number of turns of flywheel ensuring continuous energy transfer to user within operating cycle of drive spring...