... 成形运动 building motion; 成形轧辊 forming rolls; contoured roll; former roll; forming rolls; 成形轧制 roll forming; ...
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The die lips are V-contoured to minimize the air gap between the die and the roll nip whenever necessary.
模具口是V型的，为了随时减少模具和辊轴间的空气间隙。
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