Microlug
球化率快速测定试棒
🗣️ 情景例句
What type of car did you want, sir?
先生，你想要什么类型的轿车？
No, I'm a single son.
没有，我是独生子。
he identifies himself with its centre of gravity, its mass, its weight;
他把自身和物体重心、质量、重量融为一体。