- notch cutting
- 切: correspond to; be close to
- 凹口: hag; recess; notch; cove
- 切凹口压力机: notching press
- 凹口: hag; recess; [电学] notch; cove◇凹口比 notch ratio; 凹口板 notch plate; 凹口车床 gap lathe; 凹口试杆 notched bar; 凹口冲头 notching punch; 凹口管节 socket union; 凹口剪切机 gap shears; 凹口锯 concave saw; 凹口敏感比 notch sensitivity ratio; 凹口销 notch pin; 凹口研磨机 gap mill
- 凹口板: notch plate; notched plate
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