1)14C in tree-ring树轮14C
2)~(14)C14C
1.The diagenetic chron and environment are studied with~(14)C,ESR and U-Th dating method and δ~(13)C analysis in this paper.本研究采用14C、U系法、ESR等定年技术、碳同位素分析手段对其成岩时代及环境条件进行了研究。
2.~3H/~(14)C Associated Sampling Device and Some Primary Measurement Results;研制了一套3H 14C联合取样装置,并用该装置对某重水研究堆烟囱气态排出流中3H、14C浓度进行了5次测量。
3)Tree ring树轮
1.An investigation into the causes of the azimuth variations of δ~(13)C in Cryptomeria fortunei tree rings at Tianmu Mountain;天目山柳杉树轮δ~(13)C方位变化及成因探讨
2.Relationship between the stable carbon and oxygen isotopic compositions of tree ring in the Mt. Helan region,Northwestern China;贺兰山地区树轮碳氧同位素与夏季风降水的相关性讨论
3.Information of low cloud amount recorded in δ~(13)C series of tree ring cellulose of Pinus Koraiensis in Antu Area;安图红松树轮稳定碳同位素记录的低云量信息
英文短句/例句
1.Experimental Method of Density for Tree-ring Research and Its Application in Research of Tree Ring Data from Zhungeer County,Inner Mongalia;树木年轮密度实验方法及其在内蒙古准格尔旗树轮研究中的应用
2.blue corundum resin cutting grinding wheel青刚玉树脂切割砂轮
3.cymbal form resin bond wheel圆盘式树脂结合剂砂轮
4.the silhouettes of the trees against the evening sky夜空衬托出树木的轮廓.
5.The old trees were profiled against the pale sky.苍天映衬出老树的轮廓。
6.You can tell the age of the tree by the number of rings in the wood.从木头的年轮你会知道这棵树的树龄。
7.A band made around the trunk of a tree by the removal of a strip of bark.轮迹剥去树皮后在树干上形成的带
8.Count these rings, a tree grows one ring each year.数一下这些年轮，一棵树每年长一个年轮。
9.A sixty-year-old tree has sixty rings.一棵60岁的树就有60个年轮。
10.How many rings does a 4900-year-old tree have?一棵4900岁的树会有多少个年轮呢？
11.I worked with the patience of a redwood growing rings.我这种耐心，堪与红杉树长年轮媲美。
12.testing methods of phenolic resins for grinding wheels砂轮用酚醛树脂试验方法
13.The ring near the bark is the biggest one of all.离树皮最近的年轮是当中最大的。
14.Oh, red leaves, I've read your poetic message in the tree rings.红叶，我在树木的年轮里读过你的文章。
15.The statue stands out against the trees.这座雕像衬着树丛，轮廓特别鲜明。
16.The huge trees were profiled against the night sky.在夜空的映衬下显出大树的轮廓.
17.Through the trees rises the red moom,一轮红月正从树林后面冉冉升起，
18.She could see only the outline(s) of the trees in the dim light.朦胧中她只看见树木的轮廓.
相关短句/例句
~(14)C14C
1.The diagenetic chron and environment are studied with~(14)C,ESR and U-Th dating method and δ~(13)C analysis in this paper.本研究采用14C、U系法、ESR等定年技术、碳同位素分析手段对其成岩时代及环境条件进行了研究。
2.~3H/~(14)C Associated Sampling Device and Some Primary Measurement Results;研制了一套3H 14C联合取样装置,并用该装置对某重水研究堆烟囱气态排出流中3H、14C浓度进行了5次测量。
3)Tree ring树轮
1.An investigation into the causes of the azimuth variations of δ~(13)C in Cryptomeria fortunei tree rings at Tianmu Mountain;天目山柳杉树轮δ~(13)C方位变化及成因探讨
2.Relationship between the stable carbon and oxygen isotopic compositions of tree ring in the Mt. Helan region,Northwestern China;贺兰山地区树轮碳氧同位素与夏季风降水的相关性讨论
3.Information of low cloud amount recorded in δ~(13)C series of tree ring cellulose of Pinus Koraiensis in Antu Area;安图红松树轮稳定碳同位素记录的低云量信息
4)tree-ring树轮
1.The climatic reconstruction from the tree-ring δ~(13)C values of Cedrus deodara (Roxb.) Loud. during the past 20 years in Nanjing;南京地区近二十年来雪松树轮的稳定碳同位素与气候重建
2.Characteristics of millennial tree-ring width variations of Qilian juniper in Shalike Mountain, Qinghai;青海沙利克山祁连圆柏千年树轮宽度序列的变化特征
3.The principle and current situation of application of studying methods of stable carbon isotope in tree-ring to extracting information for environmental and climatic changes are summeried systematically and profoundly in this paper,and then the tendency of the application of the method are drawn from study cases.获取历史时期环境气候变迁资料是研究环境气候变迁的基础，在各种获取资料的方法中，树轮同位素方法是较为新颖、准确、定量的一种高分辨率方法。
5)C phenanthrene14C-菲
6)14C,15N14C、15N
延伸阅读
树轮1.树的横枝。
