Shooting accuracy is a main parameter to judge the quality of artillery. The machining accuracy is improved by using ultrasonic in the measurement of artillery body.
射击精度是衡量火炮质量的一个重要指标，通过将超声技术用于火炮身管测量以提高火炮身管的加工精度。
Cutting with magnetic field is enable to make cutting force shrinking, longer tool life, lower cost and machining quality improved obviously.
带磁切削能有效减小切削力，提高刀具耐用度，改善表面加工质量。
Cutting with magnetic field is enable to make cutting force shrinking, longer tool life, lower cost and machining quality improved obviously.
带磁切削能有效减小切削力，提高刀具耐用度，改善表面加工质量。
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