问题
问答题 简答题
试述着色检验的方法及其特点。
答案
参考答案：着色检验的方法是：在工件表面涂上着色剂，使之渗入内部。而后将工件表面擦干净并涂上显像剂，由于毛细管现象渗入缺陷的的着色剂上渗到显像剂中来，呈现出缺陷的逆象。
着色检验的特点是操作简单，成本低廉，但要求工件表面清洁度高，且只能探测表面缺陷。
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试述着色检验的方法及其特点。
参考答案：着色检验的方法是：在工件表面涂上着色剂，使之渗入内部。而后将工件表面擦干净并涂上显像剂，由于毛细管现象渗入缺陷的的着色剂上渗到显像剂中来，呈现出缺陷的逆象。
着色检验的特点是操作简单，成本低廉，但要求工件表面清洁度高，且只能探测表面缺陷。
I like all kinds of chocolate, especially bitter chocolate. So when Mother had bought one, I couldn’t help thinking about 36 . I was helping Father in the yard when suddenly I got an idea. I could cut a piece 37 that chocolate without anyone knowing it. I waited 38 Mother went outside feeding the chickens. Then I told Father I wanted to go for a drink of water. I went into the room and got the 39 down. Just when I had the knife ready to cut, I heard Mother coming. So I had to put the chocolate 40 into my shirt, went to my mom and 41 the chocolate there. And then I went back to 42 Father. All the rest of the afternoon, I didn’t dare to look at Father. Every time he spoke, it made me jump. My hands began shaking and my heart started 43 fast. I didn’t want the chocolate any more. I 44 wanted to get a chance to put it back. Have you ever had a similar 45 ?
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