involute serrations 渐开线锯齿
aorta clamp with serrations 带锯形齿的主动脉钳
rim serrations 轮辋滚花
radial serrations 径向齿纹
backlash between serrations 齿隙
For screws with internal serrations 带内细齿的螺钉
Internal and External Serrations 锯齿孔和锯齿轴剖面
·2,447,543篇论文数据，部分数据来源于NoteExpress
"the serrations of a city skyline"
"the pliers had serrations to improve the grip"
"one of the serrations was broken off"
以上来源于: WordNet
N the state or condition of being serrated 锯齿状
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