... 井口槽 slot 切口槽 groove of the notch; undercut groove 缺口槽 notch groove ...
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Note: in case of the special requirements, the sample size and notch-groove depth shall be executed according to the requirements of corresponding technical conditions or mutual agreements.
注：试样尺寸和刻槽深度如有特殊要求时，应按相应的技术条件或双方协议的规定执行。
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