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- This paper deals with the effects of ASU on the yield of Chinese Fir seedlings grewing on loamy yellow-red earth. The study was carried out on the basis of pot experiment by using tracer isotope ~(15)N. 本文系利用~(15)N示踪技术以研究ASU与氮肥配施对杉木苗的效果,氮素利用率及氮素在土壤和苗木间的平衡状况。
- The atom bomb is of catholic concern. 原子弹受到普遍的关注。
- That cannot get up an atom of sympathy for them. 那并不能激发起人们对他们的丝毫同情。
- Scientists have unlocked the secret of the atom. 科学家已经揭开了原子的秘密。
- A radioactive isotope of iodine widely used as a tracer in medical diagnosis. 放射性碘碘的一种放射性同位素，广泛地用于医学诊断作为追踪剂
- stable tracer isotope 稳定示踪同位素
- The particles in an atom are infinitely small. 原子里的粒子极小。
- tracer isotope 示踪同位素
- There isn't an atom of truth in the rumour. 谣言中没有丝毫的真实性。
- An atom bomb would destroy a city. 一颗原子弹能摧毁一座城市。
- A radioactive isotope of carbon, especially carbon 14. 放射性碳碳的一种放射性同位素，尤指碳14。
- No matter what substance it may be, it is made up of atom. 不管这是什么物质，都由原子构成。
- There was not an atom of evidence to convince him. 没有一点能使他信服的证据。
- This solute will be referred to as a tracer. 这种溶质称为示踪剂。
- The atom bomb is the offspring of the 20th century physics. 原子弹是20世纪物理学的产物。
- The tracer becomes increasingly dispersed. 示踪剂逐渐地扩散。
- The symbol for the isotope deuterium. 氘的化学符号同位素氘的符号
- The first atom bomb was set off over Hiroshima. 第一颗原子弹是在广岛上空爆炸的。
- Deletes tracer token history information. 删除跟踪令牌历史记录信息。
- Identifies a tracer token record. 标识跟踪令牌记录。
