a heavy-duty knife with sawtooth serrations.
锯齿的厚实耐
。
;的;;
单向皱纹;的;的;a heavy-duty knife with sawtooth serrations.
锯齿的厚实耐。
a saw-toothed mountain range; a sawtooth curve.
蜒的山脊；锯齿般的曲线
the sawtooth austenite boundaries become preferential nucleation sites of ferrite, and the sawtoothed ferrite boundaries contribute to the formation of ferrite recrystallization nucleus.
锯齿状的奥氏体晶界优先成为铁素体的
核位置;
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