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- Air consists chiefly of nitrogen. 空气主要由氮气组成。
- 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。
- nitrogen hormone 含氮激素
- Hormone secretion is controlled by the pituitary gland. 荷尔蒙的分泌是由垂体控制的。
- The doctor told him that his disease was caused by unbalanced hormone. 医生告诉他他的病是由荷尔蒙失衡引起的。
- Will you sunder nitrogen from air? 你能从空气中把氮气分离出来吗?
- Ethylene is a growth hormone in plants. 乙烯是植物中一种生长荷尔蒙。
- Estrogen hormone therapy advice is not yet uniform. 激素激素治疗意见尚不统一。
- A plant hormone that promotes flowering. 成花素一种促使花开放的植物激素
- Nitrogen is the most commonly used gas. 氮气是最常用的气体。
- Studies Showed Hormone Replacement may be Risky? 研究显示荷尔蒙补充疗法风险多?
- 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。
- What is the percentage of nitrogen in air? 空气中所含的氮的比例是多少?
- The product of this process;a hormone. 内分泌物;荷尔蒙
- Fast neutrons are also captured by nitrogen. 快中子也可以被氮吸收。
- Oestrogen is a female sex hormone. 雌激素是一种雌性荷尔蒙。
- Nitrogen forms four-fifths of the atmosphere. 氮气占空气的五分之四。