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
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
A,B,C
举一反三
- 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
- Which of the following is not a major problem to be solved in mine field development method?( ) A: Mining methods B: Shaft (adit) form C: Number of mining levels D: Layout of main haulage roadway
- Which of the following belongs to the transportation mode of inclined shaft development method?( ) A: The other three options all meet the requirements B: Trip C: Skip and trolley D: Belt conveyor
- The （） of the main shaft should be measured with a （）.
- Misalignment of the drive shaft and propeller shaft flanges can be detected by using a dial indicator or （）.
内容
- 0
The delayed value of rotation angle of the output shaft when the rotation of input shaft turns from positive to negative is . A:
- 1
What does the underlined word “shaft” refer to in this passage?
- 2
On opposite ends of a single shaft of a turboblower are a gas driven （）and a air compressor， which are sealed each other.
- 3
A （）is the foundation of the engine， without the support of which the shaft alignment in particular， and engine structure as a whole， would inevitably be lost.
- 4
Bedplates are the （） of the engine， without the support of which the shaft alignment in particular， and engine structure as a whole， would inevitably be lost.