Radiocarbon dating had to do with chemical analysis, something to do with measuring the amount of radiocarbon that's left in organic stuff.
放射性碳年代测定法涉及到了化学分析，与文物中残留的有机物成分所释放的放射性碳的含量测定有关。
They found that turning the air off for a set amount of time maximized nitrogen and organic compound removal.
他们发现，在一定时间内关闭空气流通可以最大程度上减少氮和有机化合物的含量。
For example, at the Porcupine Abyssal Plain, the amount of organic material sinking from above can vary by almost an order of magnitude from one year to another.
例如，在波丘派恩河的海底平原，来自海面的有机物质的数量随着年份的增加而发生数量级的变化。
The amount of organic poultry being produced has also fallen steadily.
有机家禽的产量也在不断的下降。
The rapid decline in "conversion" is not yet reflected in the amount of land in organic production overall in the UK, which has risen slightly.
土地的快速下降还没有影响到英国有机产品的产量，它们仍然有轻微的上升。
Research shows that organic food is indeed healthier than conventional food, having a higher amount of minerals, vitamins, and phytonutrients (plant compounds that fight cancer).
研究表明，有机食品确实是比传统的食品更健康，具有更多的矿物质、维生素和植物营养素（植物化合物可抗癌）。
I want both: I want my organic brain to contain vast stores of knowledge and my silicon overmind to contain a stupidly huge amount more.
最好两者都要：我的大脑储存广泛的知识，而硅片存储更多、多到也许不必要的内容。
The rule that you quoted is intended to cover a full-range gradient (for example, 5–100% organic solvent) and refers to the amount of volume to reequilibrate at the initial conditions.
你引用的规则是用于覆盖全范围梯度洗脱的（例如，有机溶剂从5改变到100%），并且所指的体积是以初始条件来重新平衡。
In the experiment, single-factor analysis was adopted and the influence of the amount of benzoic acid and solvent and the reaction time on the organic con- tent in bentonite was studied.
采用单因素分析方法，考察苯甲酸用量、分散剂用量、反应时间等因素对苯甲酸有机膨润土有机物含量的影响。
Mixing application of organic and inorganic fertilizer is favorable to increase amount of soil organic matter and to improve soil physical environment.
有机肥与化肥配合施用，土壤有机质呈增加趋势，有利于土壤物理环境的改善。
The amount and frequency of use of pesticides can also have an effect on how often you need to add dead organic material to your soil.
的数量和频率使用农药也可以有一个怎样的影响，往往需要添加死亡的有机物质到您的土壤。
The productivity or fertility of such an ecosystem increases as the amount of organic material that can be broken down into nutrients increases.
随着分解为营养物的有机物质总量的增加，这种生态系统的生产力或肥沃度也增加。
The effects of cyclohexanone and isoamyl alcohol on life of sealing solution and on inhibition of sealing flower, and the adding amount of organic solvent are also discussed.
探讨了环己酮和异戊醇对封闭液寿命的影响和对粉霜的抑制作用以及有机溶剂的添加量等问题。
The effects of organic promoter, catalyst amount, reaction temperature and time on the synthesis were investigated.
考察了有机助剂、催化剂用量、反应温度、反应时间等因素对反应的影响。
The reducing strength and amount of organic reducing substances produced from different green manures were different from each other.
不同有机物料所产生的有机还原性物质的强度和数量各不相同。
After a series of treatments, the amount of organic residue are counted.
经过一系列处理，计算了有机残渣含量。
After pot-cultivation, field and imitate-culturing tests, the effect of several kinds of organic material and the different amount of application on the activity of soil enzyme were analysed.
通过盆栽、田间及模拟培养试验，分析了几种有机物料及不同有机物料用量对土壤酶活性的影响。
The methods to modify the volatility amount of organic vehicle were proposed, and the volatility data are useful for the reference of the sintering temperature schedule of electronic paste.
提出了调节有机载体在不同温度下挥发量的方法，可为电子浆料烧成温度制度提供参考。
Results showed clearly that p-xylene had good biocompatibility as organic solvent in the two-phase system, its relative amount was 15%.
研究表明，二甲苯作为两相中的有机溶剂具有较好的生物相容性，加入量在总体积分数的15%；
The results showed that the amount of organic solvent molecules adsorbed was positive to the specific surface area of MOFs.
结果表明，框架物比表面积的大小与吸附有机溶剂分子的量成正比关系。
The quantitative relation between the amount of generated gas and buried age of organic matter is also discussed, which provides evidence for the estimation of the amount of generated biogas.
讨论了生气量与有机母质埋藏年代的定量关系，为生物气生气量估计提供依据。
Applying fertilizer could increase the amount of microorganism while applying organic fertilizer could increase remarkably.
施肥能够提高微生物数量，而施用有机肥使微生物总数显著增加。
The results showed that the yield and soluble sugar content of pakchoi were increased drastically through applying right amount organic fertilizer.
采用营养液培养、人工模拟弱光的方法，研究了营养液中提高铵态氮供应对小白菜产量和品质的影响。
In the eutrophication process of Wuli lake, large amount of nitrogen, phosphorous and organic matter accumulated in the sediment of the lake bottom.
在五里湖富营养化过程中，氮、磷及有机物质在湖底沉积物中大量积累。
Thus, based on chemical fertilizer with increasing application of organic fertilizer, the level of organic matter increase was significantly correlated with the amount of organic fertilizer applied.
在化肥基础上增施有机肥，土壤有机质提高程度与施有机肥量呈极显著正相关。
The fungi form the most microorganism amount of soil, resolve the organic matter, offer nutrient for plant and are healthy instruction thing for ecosystem.
真菌构成了土壤的大部分微生物生物量，具有分解有机质，为植物提供养分的功能，是生态系统健康的指示物。
The result showed that the amount and structure of the arthropod had a considerable difference between organic farming area, pure fertilizer area and normal farming area.
结果表明，有机耕作区、纯化肥区、常规耕作区各种节肢动物所占比例差异较大。
This study on the hydrocarbon regeneration amount from the sedimentary organic matters proved a theory evidence for the oil and gas exploration.
沉积有机质二次生烃量的演化规律研究为存在二次生烃的含油气盆地勘探提供了理论依据。
Biochemical oxygen demand - BOD: a measure of the amount of pollution by organic substances in water.
生化物需氧量(简写为BOD)：一种衡量有机物在水中的污染量的标准。
The Micronuces Test Technique in Vicia Faba is very significant to prevent and cure the trace amount of organic matter in water, which is more sensitive to the poison on water environment.
蚕豆根尖微核检测技术是对环境有毒物反应更灵敏的一种监测方法，对于水体中痕量有机物污染的防治工作有重要的意义。
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