端铣刀切削刃位于圆柱的端头,圆柱(或圆锥)面刃口为主切削刃,端面切削刃为副切削刃。
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端铣比周铣切削平稳,加工质量好,刀具寿命和生产率高。在平面铣削中,尤其是大平面,大多采用端铣。
A. 对
B. 错
Use what you have learned to write a conclusion for the following topic Topic:The Benefits of Exercises Thesis statement:Regular exercise is beneficial since it can improve our body, make us happy as well as expand our social circle. Requirements: Your thesis restatement should have the same meaning with the thesis statement but expressed in different ways Your general closing remark should be confident, thought-provoking and memorable. Your conclusion shouldn’t include new information
梁与墙体交接处,梁侧模板伸入墙内或梁底模伸入墙内不小于( )mm
A. 500
B. 600
C. 700
D. 800
对于跨度6m的钢筋混凝土连续梁,当设计无规定时,其梁底木模板中部应采用的起拱高度合理的是( )
A. 5mm
B. 10mm
C. 25mm
D. 20mm