indentation

• 指表面或边缘上的凹口、凹陷或凹痕，也指造成这种形状的动作；在文本中还指行首的空格或缩进。

A noun referring to a notch, recess, or inward curve in a surface or edge, or the act of creating such a shape; also used to describe the space left at the beginning of a line of text.

1. Concave cut or notchB2formal

   A recess or notch in a surface or edge, such as those found along a coastline.

   凹口

   • The map showed many small indentations along the shore.
   • The cliff had a deep indentation from years of erosion.
   • He traced the indentation in the wood with his finger.

   同义词cavitydentdepressiongougehollownicknotchrecess

   反义词bulgeprojectionprotrusion

2. Pitting from corrosionC1formalscientific

   The formation of small pits or depressions on a surface due to chemical or corrosive processes.

   腐蚀凹坑

   • The metal showed signs of indentation from rust.
   • Corrosion caused indentation on the old pipes.
   • The surface had small indentations from acid exposure.

   同义词pitting

3. Typographic spacingB1formal

   The blank space left between the margin and the beginning of a line of text, typically used to indicate a new paragraph.

   缩进

   • Please use a tab for the indentation at the start of each paragraph.
   • The document requires a 0.5-inch indentation for all body text.
   • She adjusted the indentation to make the report look more professional.

   同义词indentindention

4. Notched cuttingC1formaltechnical

   The act of cutting into an edge to create tooth-like notches or angular incisions.

   齿状切口

   • The craftsman made a precise indentation along the edge of the wood.
   • The saw blade had indentations that helped it cut more efficiently.
   • He created an indentation in the metal to fit the gear.

   同义词serration