皮帶這類, 肯定有前兆, 隻是(肉眼) 看不到。和金屬疲勞類似, 應當還是查得出的。
WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.
Copyright ©1998-2026 wenxuecity.com All rights reserved. Privacy Statement & Terms of Use & User Privacy Protection Policy
