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- The injector button head must be unscrewed one half turn to open the internal valve before injecting grease. 在注入润滑油之前，注入器圆头螺栓必须拧松半圈，打开阀门内部部件通道。
- While unscrewing the injector button head, a second wrench must be used to assure that the injector body is not loosened from the main valve. 在拧松注入器圆头螺栓时，要用第二个扳手固定住注入器，防止其从主阀门上松落下来。
- Captured Hinge Pins - A simple button head screw captures all the outer hinge pins of the Ultima RB5. 抓获铰链销-一个简单的按钮头螺钉捕获所有外铰链销的最后rb5。
- Our main products include self-drilling screw series (hex washer head, pan head, button head, hex flange head, etc.), drywall screws, chipboard screws, tapping screws, etc. 我公司产品为钻尾螺丝系列（六角华司头、盘头、钮扣头、喇叭头、六角法兰头、小仔头等），干壁钉、纤维板钉和自攻钉等自攻类螺丝。
- Hexagon socket Button head screws 圆头内六角螺钉
- She nestled her head on his shoulder. 她将头依偎在他的肩上。
- You may push this button to call the elevator. 你可以按这个按钮叫电梯。
- You may stop the machine by pushing this button. 按下这个按钮你就可以关掉这个机器。
- Just press the button and the machine will start. 只要一按电钮，机器就会开动。
- Will you stitch a button on this shirt? 请你在这件衬衫上钉一颗钮扣好吗？
- The deer lowered its head to drink from the pond. 鹿低下头去喝池塘里的水。
- He gave the little boy a clout on the head. 他在那小男孩的头部打了一下。
- I saw the small girl topple over and hit her head. 我看见那小女孩栽了一跤，碰着了头。
- Press this button in case of fire. 遇火灾时按下此钮。
- This button switches the current on. 这个电钮接通电流。
- He pressed the button to call the lift. 他按键招呼电梯。
- I was dazed by the blow on my head. 我的头挨了一击而觉得晕眩。
- She leaned her head back and whispered the news. 她向后仰着头，小声说出了这个消息。
- The horse kicked its fallen rider about the head. 那匹马乱踢从它背上掉下来的骑手的头部。
- The shirt do not button up very easily. 这件衬衫扣起来不太容易。
