基本解释耙頭同根派生 draghead相关词英汉例句In addition, the influence of drag-teeth's pressure against riverbed and sealed degree of the draghead were also tested, and some adjustments and improvements were made. 研究了耙齒對地壓力、耙頭吸腔密封度等因素的影響，竝做出了調整和改進。draghead teeth 耙齒draghead更多例句