Borosiliconizing
硼硅处理, 硼硅化, 渗硼硅化
🗣️ 情景例句
One apple. Two apples. Three apples. Four apples.
一个苹果。两个苹果。三个苹果。四个苹果。
What are you doing next week?
下周你干什么？
Most children have such a high ideal of their parents,
大多数孩子对父母估价过高，