Coconut fibre mat have the firm soil, keep wet, scatter abort the water current, function;
椰棕垫具有固土，保湿，分散水流的作用；
Bare Soil Areas: a firm, crumbly consistency to the seedbed is preferred.
裸土区域：苗床适宜一种牢固，疏松连续的土壤。
The results show that there only exists the geometrical drift of sedentary minerals without firm connection among the pure soil particles.
研究结果表明，纯土的土颗粒之间只有原生矿物的几何堆积，而没有牢固的连接。
With her trowel she turned the soil over and over, and smoothed it and patted it firm.
她用泥铲把土翻了又翻，又弄平，再拍结实。
The cement soil improvement principle is the cement distributes in the soil constitutes the firm core, forms the hydrated cement in all crevices the skeleton, in order to the restraint soil particles.
水泥土改良的原理是水泥分布在土中构成坚固的核心，在所有的空隙中形成水化水泥的骨架，借以约束土粒。
The cement soil improvement principle is the cement distributes in the soil constitutes the firm core, forms the hydrated cement in all crevices the skeleton, in order to the restraint soil particles.
水泥土改良的原理是水泥分布在土中构成坚固的核心，在所有的空隙中形成水化水泥的骨架，借以约束土粒。
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