This paper presents a parameter assessment method to determine the eigenfrequency of the pile-soil system.

本文提出一种确定桩土系统固有频率的参数估计方法。

youdao

The transport and distribution of dissolved chemicals are influenced by water movement in the soil system.

可溶性化学物质在土壤中的运移和分布一般可以反映出多孔介质中溶质随着水分运(流)动的规律。

youdao

Zhang Fusuo dismisses these concerns, saying his study uses "large-scale sites from each province and each soil system."

张福锁对这些论点进行了驳斥。 他表示，他的研究采用(的样本)“来自每个省和每个土壤系统的范围广泛的不同地点。”

youdao

The system is designed to identify the presence of contaminants like soil or animal waste on fresh produce.

VOA: special.2011.06.07

Three weeks ago, the US and Japan agreed to set up a second missile defence system on Japanese soil in response to the North Korean threat.

BBC: South Korea expands ballistic missile system range

After the Shafers hauled their soil back uphill, the first irrigation system they installed exploded.

WSJ: The Near-Accidental Brilliance of Shafer Vineyards

Where the Earth has soil, other rocky bodies in the solar system have regolith.

ECONOMIST: Spaceflight