滤叶的作用是：用来支承和吸附硅藻土助滤剂的唯一基础，并具有疏液流畅，截流可靠等性能。

Quality&usage:It's the only base of supporting and absorbing the auxiliary filter agent of diatomite and it make the fluid flow fluently and effctively.

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本文根据桩土变形协调关系，提出疏桩基础沉降计算的二元联立方程组。

Through the coordinate deformation between soil and piles, this paper suggests that the dualistic simultaneous equations are used in solving the settlement for the sparse piled foundation.

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疏花水柏枝适宜于亚热带气候下弱碱性、养分含量低的冲积性砂砾质初育土，能耐一定程度的盐分。

Myricaria laxiflora, on the other hand, prefers the alluvial soil with sand and gravel in subtropics climate. The soil is of weak alkalinity, has low content of nutrient but moderate salt.

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