undercutter

1. 1.

   One who, or that which, undercuts.

   削价的人或物；切割下部的人或物。

2. 2.

   A type of plough with a V-shaped blade or sweep pulled along under the soil.

   一种犁,带V形刀片或铲,在土壤下拉动。

3. 3.

   A type of bit.

   一种钻头。

4. 4.

   A device for excavation, used on railways.

   铁路用的挖掘装置。

5. 5.

   A device for cutting into rock walls from below.

   从下方切割岩壁的装置。

一种犁,带V形刀片或铲,在土壤下拉动。；一种钻头。；铁路用的挖掘装置。；从下方切割岩壁的装置。；擦伤

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