The relative reliable way is using fixed minor slope Angle of supporting rod or trestle and changing the height of camera to obtain different sample area.
认为比较可靠的方法是使用固定小倾斜角的支竿或支架，用改变高度调节取样面积。
The utility model relates to a multifunctional soil sample connecting device, which comprises a drill rod, a drill body, a handle and a collecting cylinder.
本实用新型为一种多用途土壤样品采集装置，它包括钻杆、钻体、手柄。
Taking the examination of prestressed pull rod under an arch in a natatorium as a sample, the working internal force of pull rod is determined by use of vibration method.
以某游泳馆拱下预应力拉杆检测为例，应用振动法测试拉杆的工作内力。
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