基本解释[紡織科學技術]鋸齒圓磐词组短语短語serrated edge disk harrow 缺口圓磐耙serrated disk colter 鋸齒形圓犁刀serrated disk feeler 刻齒圓磐倣形器专业释义紡織科學技術鋸齒圓磐