实腹式轴压杆绕x,y轴的长细比分别为<img src="/lqwvjeImg/f3/f3e28b576b0fd8ca47eaea8bf7256d71.png" style="font-size: 14px;">、<img src="/lqwvjeImg/03/03a54beaa34cf9346f614579dd5c0806.png" style="font-size: 14px;">,对应的稳定的系数分别为<img src="/lqwvjeImg/65/6567c11dde55cfc61b5b3ad7cc9e2a2f.png" style="font-size: 14px;">、<img src="/lqwvjeImg/8f/8f1e35a3202a46b1f7cc99ef912ab11e.png" style="font-size: 14px;">,若<img src="/lqwvjeImg/c3/c378eabbf98f701a024ac07994da5738.png" style="font-size: 14px;">=<img src="/lqwvjeImg/03/03a54beaa34cf9346f614579dd5c0806.png" style="font-size: 14px;">,则( )。<br>·<img src="/lqwvjeImg/65/6567c11dde55cfc61b5b3ad7cc9e2a2f.png" ><img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1622526973885_45179ec3b8de4b228b16317bb677f444.png" <br>·<img src="/lqwvjeImg/65/6567c11dde55cfc61b5b3ad7cc9e2a2f.png" <<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1622526986314_45c7e39ac45b41e888fd11551b3a27eb.png" <br>·<img src="/lqwvjeImg/65/6567c11dde55cfc61b5b3ad7cc9e2a2f.png" =<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1622527018811_c240e5e09a3a4d14b547f794fc80c4ee.png" <br>·需要根据稳定性截面分类判别