carbon 14
英
美
网络 碳14
英英释义
noun
- a radioactive isotope of carbon
双语例句
- In addition the capacity of carbon sequestration of forest ecosystem and its economic value were estimated for each of the 14 municipalities in Hunan. Finally emission reduction of CO_2 through forest establishment was discussed.
同时还对湖南14个市州的森林碳汇及其经济价值分别进行了估算，并进一步对通过林业建设实现CO2减排进行了探讨。 - The physiological character about photosynthesis, respiration and carbon nutrition transport were studied by using 14 C marker tracing method. The result showed that different treatments had little effect on photosynthesis; but respiration was improved with the increasing of combination treated dose;
运用14C标记示踪技术，测定诱变处理后幼苗的光合作用、呼吸作用，并考查碳素营养运转情况，结果表明：不同处理对光合作用影响很小，但呼吸作用随复合剂量加大而增加，同时输出物质减少。 - The carbon assimilatory rate of macrophytes measured by 14C method is 19.0%-40.2% of that measured by O2 method.
~（14）C法测出的底栖植物的碳同化速率为O2法测定值的19.0%&40.2%。 - Carbon dynamics of Masson pine plantation in different age classes ( 8 a, 14 a, 23 a, 38 a) in the central hilly area of Guangxi, China was studied based on the estimation of their biomass and net primary production ( NPP).
对广西中部丘陵区不同年龄阶段（8年生、14年生、23年生、38年生）的马尾松人工林生物量和净生产量进行了研究，探讨了该人工林生产与碳素动态。 - Carbon 14 age dating in Xinjiang and data base ( I)
新疆~（14）C年代测定及数据集（I） - To calibrate theoretical calculation result of reflecting neutrons effects for carbon nucleus, the reflecting neutrons effects of 14 MeV neutrons after penetrating three composed materials were measured with capture detector.
为了校核碳核对反射中子效应的理论计算结果，用俘获探测器测定了14MeV中子穿过三种不同形式的组合材料后的反射中子效应。 - Using radioactive carbon ( c~ ( 14)) to study the physiological action of gibberellin upon the translocation and distribution of photosynthetic products in paddy rice
应用放射性碳（C~（14））研究赤霉素（920）对水稻光合产物运转与分配的生理效应 - The maximum radar detection range of carbon fiber mortar with an optimum mixture ratio is 80% 90% of pure mortar in the frequency range of 14 18 GHz.
最佳配比的碳纤维砂浆在14～18GHz的频段内，其雷达最大探测距离可降低到素砂浆的80%～90%。 - The water content, water soluble organic carbon ( WSOC) and organic matter reduced significantly during the composting process. In addition, the composing products in 14 days were almost mature, and could meet the class A hygienic standard of US EPA.
14天反应周期结束时，物料含水率、水溶性有机碳和有机质含量显著降低，堆肥产品腐熟，卫生学指标达到了美国EPA污泥产品A类标准； - Make carbon to a turtleback excuse me 14 determine how many fee to need? How to apply for, what is there relevant formalities?
请问对一个龟甲做碳十四测定需要多少费用？如何申请，有什么相关手续？