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[主观题]
Directional properties in fiber composites are achieved mainly due to ______. A.fiber orientation
Directional properties in fiber composites are achieved mainly due to ______.
A.fiber orientation B.laminate plane C.interphase D.prepregs
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Directional properties in fiber composites are achieved mainly due to ______.
A.fiber orientation B.laminate plane C.interphase D.prepregs
第3题
A.前角、后角和刃倾角
B.主偏角、副偏角和刃倾角
C.前角、后角和刀尖角
D.主偏角、副偏角和刀尖角
第6题
在下图中标出刀具的前角γo、后角αo、主偏角Kr、副偏角K'r、刃倾角λs、副后角α'o以及三个参考平面:基面Pr、主剖面Po、切削平面Ps。
第7题
在下图中标出刀具的前角γo、后角αo、主偏角Kr、副偏角K'r、刃倾角λs、副后角α'o以及三个参考平面:基面Pr、主剖面Po、切削平面Ps。
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