方法：采用砂烫法进行水浸出物含量测定。
Methods: We measured the content of water-soluble lixivium by means of sand-scorch.
介绍采用砂被保护海底管线的新方法及施工过程。
It introduces the new method and construction process of seabed pipeline protection by adopting sand quilt.
采用砂培、水培和室内培养等试验方法研究了连作大豆根分泌物对根腐病病原菌的化感作用。
Allelopathic effect of root exudates on pathogenic fungi of root rot in continuous cropping soybean was studied by sand culture, water culture, and indoor culture experiments.
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