不平衡度ε
参考答案：
指三相电力系统中三相不平衡的程度，用电压或电流负序分量与正序分量的方均根值百分比表示。
阅读理解
Hello, I am Linda. I have a big family. They are my grandfather, grandmother, uncle, aunt, father,
mother, cousin and me. My uncle likes sports. He has a great sports collection. He has three volleyballs
and two soccer balls. My aunt like music. She has many CDs and tapes. My cousin likes playing computer games and eating fruit. He eats a lot every day. I like reading. I have many books. I love my family.
1. There are ____people in the family.
2. Linda's uncle has ____balls.
3. Linda's aunt has .
4. likes playing computer games and eating fruit.
5. Linda likes ____.
颈椎骨折适用( )
A．皮肤牵引B．跟骨牵引C．骨盆悬吊D．骨盆牵引E．颅骨牵引
s aunt has .