Under natural state, nursery stock of cuttage's water-reserving ability vary in different month, early nursery stock has strong water-reserving capacity and easy to survive the winter.
在自然状态下，不同月份扦插的苗木保水能力存在差异，扦插越早的苗木保水能力越强，越冬受低温伤害越轻。
Natural and modified zeolite have strong selective adsorption ability to ammonia nitrogen in the wastewater.
天然沸石及改性沸石对氨氮有很强的选择性吸附能力。
Natural and modified zeolite have strong selective adsorption ability to ammonia nitrogen in the wastewater.
天然沸石及改性沸石对氨氮有很强的选择性吸附能力。
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