问题
名词解释
比模量与断裂长度
答案
参考答案：
比模量：初始模量与纤维密度的比值。
断裂长度：纤维重力等于其断裂强力时的纤维长度，单位为千米（㎞）。
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比模量与断裂长度
参考答案：
比模量：初始模量与纤维密度的比值。
断裂长度：纤维重力等于其断裂强力时的纤维长度，单位为千米（㎞）。
| 用方框中所给的单词的适当形式填空。 | |
Wendy: Yes. I 1 her invitation yesterday. Are you going tomorrow, Nina? Nina: Yes, of course. I wouldn't 2 her birthday party for anything. Wendy: Could you tell me what I should take as a birthday present? Nina: I was going to ask the same question. Wendy: We must hurry. he 3 , the better. Nina: I can't agree more. Well, I'll tell you what. Let's go 4 together right now and pick out what she may like. Wendy: Good 5 ! 1._____2._____3._____4._____5._____ |