1
Õˆ(q¨«ng)½Ì¸÷λÔõ˜ÓÓ‹(j¨¬)Ë㣺ã~¡¢äX¡¢ä“¾€µÄ¹«ÀïÓ‹(j¨¬)Ëã·½·¨£¡
2
3
ÊÇã~¾€¡¢äX¾€¡¢ä“½zÿ¹«ÀïÓжàÉÙÖØÁ¿µÄÓ‹(j¨¬)Ë㷽ʽ£¡
±ÈÈ磺2.5mm†Îоã~½zÿ¹«ÀïµÄÖØÁ¿ÈçºÎÓ‹(j¨¬)Ëã!
ÖxÖx£¡
4

5
6
1/{(2.5/2)ƽ·½*3.14*8.9}*1000=22.901
´Ëžé1¹«½ï2.5mmã~¾€µÄÃ×”µ(sh¨´)Ó‹(j¨¬)Ëã,ÄãÔÚ“QËãһϡ£
äXºÍ䓵Ä×Ô¼ºËã°É¡£
7
²ÄÁÏÖØÁ¿=²ÄÁϽØÃ棨ÔO(sh¨¨)Ó‹(j¨¬)Öµ£©*²ÄÁÏÃܶÈ*éL(zh¨£ng)¶È
×¢ÒâÓ‹(j¨¬)Á¿†Îλ“QËã¡£
8
ºÃ