在设备研制成功的基础上，对钻孔机钻头不同钻尖、不同切土刀刃角进行了实地试验研究和分析。
Based on the machine development, a research and analyses of auger drill bits with different kinds of drill tips and soil cut blade angles were carried out in tree planting field.
根据盐田防渗塑膜铺底所需覆土量的技术要求，设计了盐田防渗塑膜铺底专机(简称：盐田铺膜机)的切抛土部件。
According to technical requirements of filming plastic sheet for leakproof saline, a soil cutting and throwing device was developed.
根据盐田防渗塑膜铺底所需覆土量的技术要求，设计了盐田防渗塑膜铺底专机(简称：盐田铺膜机)的切抛土部件。
According to technical requirements of filming plastic sheet for leakproof saline, a soil cutting and throwing device was developed.
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