Magnaglo
电磁紫外线探伤法, 玛格纳络磁性粉末
🗣️ 情景例句
I love my school. I have so many good friends there now.
我喜欢我的学校。我现在有那么多好朋友在那里。
I'm going to have some x-rays taken.
我要拍摄Ｘ光照片。
Once waves have been generated,
一旦波浪形成，