Based on the test data published for leaking steam flow rates of brush type seals, determined was the permeability coefficient of the porous medium of the bristle pack.
根据发表的刷式密封泄漏量试验数据，确定了刷丝束多孔介质的渗透率系数。
It was suggested that tending should hinge on local conditions. Bamboo grove should not be weeded, where brush was not luxuriant and the soil was porous.
建议竹林抚育要因地制宜，对杂灌不繁茂、土壤较疏松的竹林不劈草。
It was suggested that tending should hinge on local conditions. Bamboo grove should not be weeded, where brush was not luxuriant and the soil was porous.
建议竹林抚育要因地制宜，对杂灌不繁茂、土壤较疏松的竹林不劈草。
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