大家都搜:
信封图纸
1、envelope sizes───信封尺寸
2、drawing───v.绘画;吸引(draw的ing形式);拖曳;n.图画;牵引;素描术
3、red envelope───n.红包
4、fertilization envelope───受精囊
5、envelope───n.信封,封皮;包膜;[天]包层;包迹
6、sealed envelope───密封的信封
7、envelope dl───信封dl
8、diffraction envelope───衍射包络
9、prc envelope───中华人民共和国信封
1、The paper discussed the sectionalization, the method for finding equation and the drawing of the envelope graph of bending moments of the simple crane girder under the action of crane loads.───论述了在吊车荷载作用下的简支吊车梁的弯矩包络图的分段、方程求法,最后通过实例说明包络图的绘制。