chinese characters stroke extraction

sub stroke extraction

sub-stroke extraction

stroke segment extraction

Extraction and back extraction

extraction and back-extraction

Extraction or Non-Extraction Plan

extraction-anti-extraction

Extraction-Back-Extraction

Oil Extraction Office of No.3 Oil Extraction Factory

2-stroke Gas Engine

2-stroke Gasoline Engine

2-stroke gasoline engine oil

2-stroke motorcycle

4 stroke engine

4-Stroke Motorcycle

a faulty stroke in calligraphy or painting

a finishing stroke

a gallery stroke