您要查找的是不是：
- self retaining brain retractor 脑固定牵开器
- After exposing the cervical spine the self retaining retractor is placed to provide optimal visualization. 垫起颈后部，以确定和保持正常的颈的生理弯曲。
- self retaining abdominal retractor 腹部自留牵开器
- Gosset's self retaining abdominal retractor 戈塞特(氏)腹壁自固定牵开器
- Balfour's abdominal retractor non-slip self retaining retractor 巴耳弗(氏)无滑动自固定拉钩
- Oldberg's flexible brain retractor 奥尔德伯格(氏)软性脑室拉钩
- Frazier's lighted brain retractor 弗雷惹(氏)轻便脑牵开器
- self retaining retractor 保留牵开器
- That maths exam I took was a regular brain drain. 绞尽脑汁的数学测验，我真是绞尽了脑汁。
- I do not like to go to the movies by my self. 我不喜欢自己一个人看电影。
- A dyke was built to retain the floods. 修了一道堤坝挡住洪水。
- His good image has stolen up on my brain. 他的良好形象已渐渐在我头脑中形成。
- I my self is going to make a sandwich. 我要亲手做个三明治。
- He was a wreck of his former self. 他身体坏得不成样子，已兴从前判若两人。
- A sudden, thought flashed across his brain. 突然一种想法在他脑海里闪过。
- Knowledge of self increases as one gets older. 随着年岁的增长，人们的自我认识也不断加深。
- He is heir to his father's fine brain. 他承袭了他父亲的聪明头脑。
- The doctors gave him an ultrasonic brain scan. 医生给他做了脑部超声波扫描检查。
- He suffered irreversible brain damage in the crash. 他在事故中大脑受伤无法治愈。
- He's not looking like his old self lately. 他最近看起来不像以前那样。
