【判断题】
mso-ascii-font-family:宋体;mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:
宋体;mso-bidi-font-family:Times New Romanmso-bidi-theme-font:minor-bidi;
mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA">通过对组合体尺寸的分析,把组合体三视图尺寸分为定形尺寸、定位尺寸和总体尺寸
【判断题】
mso-bidi-font-family:Times New Romanmso-bidi-theme-font:minor-bidi;
background:white;mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:
AR-SA">零件图视图数量及表达方法应根据零件的具体结构特点和复杂程度而定,表达的原则是:完整、简洁、清晰
【判断题】
mso-bidi-font-family:Times New Romanmso-bidi-theme-font:minor-bidi;
color:#333333;background:white;mso-ansi-language:EN-US;mso-fareast-language:
ZH-CN;mso-bidi-language:AR-SA">零件图应通过剖视图和断面图表达内部结构,不应出现虚线
【单选题】
正投影法中,投影面、观察者、物体三者相对位置是( )
①
Normal
0
7.8 磅
0
2
false
false
false
EN-US
ZH-CN
X-NONE
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人——面——物
②
Normal
0
7.8 磅
0
2
false
false
false
EN-US
ZH-CN
X-NONE
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物——人——面
③
Normal
0
7.8 磅
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2
false
false
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EN-US
ZH-CN
X-NONE
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C. 人——物——面
④
Normal
0
7.8 磅
0
2
false
false
false
EN-US
ZH-CN
X-NONE
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面——人——物
【单选题】
当直线、平面与投影面平行时,该投影面上的投影具有( )
①
Normal
0
7.8 磅
0
2
false
false
false
EN-US
ZH-CN
X-NONE
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mso-ascii-theme-font:minor-latin;
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mso-hansi-theme-font:minor-latin;
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积聚性
②
Normal
0
7.8 磅
0
2
false
false
false
EN-US
ZH-CN
X-NONE
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真实性
③
Normal
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2
false
false
false
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类似收缩性
④
Normal
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7.8 磅
0
2
false
false
false
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ZH-CN
X-NONE
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mso-fareast-font-family:等线;
mso-fareast-theme-font:minor-fareast;
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mso-hansi-theme-font:minor-latin;
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收缩性
【多选题】
平行剖切面剖视图分为平行剖切面全剖视图、 、 三种
【单选题】
mso-bidi-font-family:宋体;mso-font-kerning:0pt;mso-ansi-language:EN-US;
mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA;mso-bidi-font-weight:bold">平行剖切面剖视图所用的剖切平面是
【判断题】
平面平行于正棱锥底面截切,截交线为平行于底面且小于底面的正多边形,多边形边数与底面不一定相同。
【判断题】
通过正棱锥顶点截切,截交线为多边形,边数视具体情况确定。