您要查找的是不是：
- self threading screw 自攻螺钉
- coarse pitch multiple thread screw 多头大螺距螺杆
- A device for measuring very small distances,objects,or angles,especially one based on the rotation of a finely threaded screw,as in relation to a microscope. 测微计，千分尺用以测量非常小的距离，物体或角度的仪器，尤指显微镜上利用精细螺纹的螺杆的旋转进行测量的仪器。
- A device for measuring very small distances, objects, or angles, especially one based on the rotation of a finely threaded screw, as in relation to a microscope. 测微计，千分尺用以测量非常小的距离，物体或角度的仪器，尤指显微镜上利用精细螺纹的螺杆的旋转进行测量的仪器
- I can't get this screw to come out of the wall. 我无法把这颗螺丝钉从墙上取出。
- I do not like to go to the movies by my self. 我不喜欢自己一个人看电影。
- Using F type screw thread connection. 采用F型螺纹连接方式。
- I my self is going to make a sandwich. 我要亲手做个三明治。
- It may take an hour to wind off all the thread. 把所有线都松下需一个小时。
- The brackets want an extra screw. 托架需要再加一个螺钉。
- 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。
- 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。
- She was threading her way through the crowd. 她正从人群中挤过去。
- The thread seems to match the cloth. 这线和这布似乎很相称。
- He's not looking like his old self lately. 他最近看起来不像以前那样。
- The taste of the lemon made her screw up her face. 柠檬把她酸得龇牙咧嘴。
- He is my best friend, my second self, as it were. 他是我最好的朋友，或者说，是第二个我。
- How many spools of thread did you use? 你用了几轴线?
- He never has any thought of self. 他从不考虑个人得失。
- STAINLESS STEEL COARSE THREAD SCREWS 不锈钢粗牙螺丝
