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- Air consists chiefly of nitrogen. 空气主要由氮气组成。
- Keywords orest marshland;readily available nutrient;hydrolyzable nitrogen;readily available phosphorus;readily available potassium;nutrient-rich;nutrition-poor; 森林沼泽土;速效养分;水解氮;速效磷;速效钾;富营养型;贫营养型;
- This kind of soil contains much alkali. 这种土壤含碱丰富。
- Nitrogen forms most of the Earth's air. 地球上空气的大部分成分是氮气。
- The lamp is full of gaseous nitrogen. 灯里充满了气体氮。
- hydrolyzable nitrogen 水解性氮
- Keywords waste PAN yarn;alkali hydrolyzation;degradation; 废旧腈纶毛线;碱法水解;降解;
- Nitrogen forms about 78% of the earth's atmosphere. 氮约占地球大气的百分之七十八。
- Cyclization occurs readily with dilute alkali. 遇到稀碱就容易环化。
- The acid and alkali are combined into salt. 酸与碱化合成盐。
- Of, relating to, or containing an alkali. 碱的与碱有关的或含碱的
- Will you sunder nitrogen from air? 你能从空气中把氮气分离出来吗?
- The key problem is to overcome alkali in the soil. 关键在于控制土壤里的碱分。
- Are using lime as the cheapest alkali. 最廉价的碱。
- This kind of soil containsmuch alkali. 这种土壤含碱丰富。
- Nitrogen is the most commonly used gas. 氮气是最常用的气体。
- Effect of Saline Alkali Soil Stress on Zea mays L. 土壤的盐碱化对玉米的胁迫作用。
- Sample gas tubes are flushed with nitrogen. 采气管得用氮气吹扫。
- The main reservoir of nitrogen is the atmosphere. 氮的主要蓄存库是大气层。
- The acid and alkali are combined in salt. 酸与碱化合成盐。
