hardpan

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。

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。

construction technique of soft foundation improvement under thick hardpan

厚硬土层下软土地基处理施工技术

statement of construction technique for hardpan steady used water

浅谈水稳砂砾层的施工工艺

construction technology of cable tunnel inclined drill through hardpan

电缆隧道斜穿砂砾层施工技术

the soil was gray and gravelly, compacted into hardpan by bulldozers and steamrollers.

原本布满碎石的灰白色土地被推土机和压路机压成硬土。

Prices have reached ( the ) hardpan.

物价已经降到了 最低点.

its uninviting surface is marked by mesas and buttes, and barren stretches of parched desert hardpan.

不起眼的表面有著台地与小尖山以及贫脊乾燥的沙质地基。