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- Farmland nitrogen loss and its control strategies from the view of water environment 从水环境角度探析农田氮素流失及控制对策
- Gradually the surrounding farmland turned residential. 周围的农田渐渐变成了住宅区。
- Air consists chiefly of nitrogen. 空气主要由氮气组成。
- The once barren hillsides are now good farmland. 昔日荒坡，今日良田。
- 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。
- Nitrogen forms about 78% of the earth's atmosphere. 氮约占地球大气的百分之七十八。
- farmland nitrogen 农田氮素
- Thirty percent of the farmland has been planted to oil crops. 百分之三十的农田已种上油料作物。
- What is the going price of farmland in Japan? 日本的农田时价是多少?
- They are working in the farmland. 他们正在农田里工作。
- A cow charged across the farmland with a bull bellowing(out) after it. 一头母牛狂奔着冲过农田，一头公牛吼叫着尾随其后。
- Will you sunder nitrogen from air? 你能从空气中把氮气分离出来吗?
- Some measures are needed to secure the farmland against shifting sand. 需要采取措施使农田免遭流沙的侵袭。
- The farmland was worked by three families. 这块田由三家耕种。
- Nitrogen is the most commonly used gas. 氮气是最常用的气体。
- 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 crisscross paths on a farmland. 阡陌纵横。
- What is the percentage of nitrogen in air? 空气中所含的氮的比例是多少?
