题目内容
(请给出正确答案)
提问人:网友meadlai
发布时间:2022-01-07
[主观题]
Whe two adjacent part are cut, the hatching direction shall be reverese.
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A、resourceful
B、obvious
C、temporary
D、disoriented
A、same level with contacting surface
B、above the contacting surface
C、under contacting surface
D、any position
A、Bm=d, for steel
B、Bm=1.25d or 1.5d for cast iron
C、Bm=2d for aluminum
D、Bm=0.5d for steel
A、length of the key
B、width of the key
C、height of the key
D、number of the key
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