How to Use "serration" with Example Sentences

1. No serration pattern or hesitation marks .

2. A research on cracked failures of fir-tree serration in aeroengine turbine disc .

3. Tighten the internal serration screw on the exhaust sprocket .

4. Serration marks are consistent with the saw you found at the scene .

5. Unifoliate each other is unripe , elliptic or shape pouring egg is elliptic , grow 2-6cm , whole reason or have extremely serration .