heavy duty disc harrow

例句：

1. 1.The heavy duty disc harrow is an essential tool for farmland preparation.
   重型动力耙是农田准备的必备工具。
2. 2. The heavy duty disc harrow can efficiently break up tough soil and prepare the ground for planting.
   重型动力耙能有效地打破坚硬的土壤，为播种做好准备。
3. 3. In heavy rain, farmers often use heavy duty disc harrow to prevent waterlogging in their fields.
   在大雨中，农民们经常使用重型动力耙来防止他们的田地积水。