问题
问答题
材料破坏
答案
参考答案:对于长细比较小或适中的柱,例如矩形截面柱,当
时,将由于材料的强度或变形能力耗尽而引起正截面的破坏,称为材料破坏。
材料破坏
参考答案:对于长细比较小或适中的柱,例如矩形截面柱,当
时,将由于材料的强度或变形能力耗尽而引起正截面的破坏,称为材料破坏。
选择方框中适当的单词填空。 | |
2. My classmates want to _____ a party on Saturday. 3. Please _____ an e-mail to your pen friend. ![]() 4. Don't _____ computer games very often. 5. Helen likes to _____ to the music before exam. 6. I like to _____ at home and read some books in the evening. 7. Let's go to _____ a film called The Lion King tomorrow. |