1·Prices have reached (the) hardpan.
物价已经降到了最低点。
2·The limestone–and–clay and sand-and-clay soil over a hardpan and iron–dross subsoil allows excellent draining.
庄园粘土层上的石灰石泥和沙泥土以及心土钢渣形成了很好的排水。
3·For the need of earthquake microzonation some studies on the dynamic properties of hardpan in west Anhui were conducted.
本文结合地震小区划的需要对皖西硬粘土的动力特性进行了一些研究。
4·The study provided the variation range of paddy field hardpan roughness and the effective frequency of the hydraulic copying system.
试验研究提供了水田沟底不平度变化范围以及可以实用的插秧机液压仿形系统的仿形频次。