On opposite ends of a single shaft of a turboblower are a gas driven （）and a air compressor， which are sealed each other.

Among the following deep drawing methods, which have a great impact on the original shaft production? ( ) A: Direct extension of shaft B: Direct extension of inclined shaft C: Deepening of concealed shaft D: Deepening of inclined shaft

Misalignment of the drive shaft and propeller shaft flanges can be detected by using a dial indicator or （）.

Zhang Heng's Guide car is made up of a four wheeled single-shaft.

The delayed value of rotation angle of the output shaft when the rotation of input shaft turns from positive to negative is . A:

The （） of the main shaft should be measured with a （）.

What does the underlined word “shaft” refer to in this passage?

Which of the following are common forms of comprehensive development?( ) A: Development of main inclined shaft-auxiliary vertical shaft B: Development of main shaft-auxiliary inclined shaft C: Main shaft-auxiliary adit D: Multi-shaft areas development

Hip replacement surgery is______joint replacement surgery in the U.S. A: the single most frequent B: the most single frequent C: the single frequent D: a single frequent

With four-stroke engines， it takes four revolutions of the crank shaft to make （） power stroke(s).