isotope ratio造句
The isotope ratio is directly used for comparing oils or gases.
But the team found that on the Moon it was about 25 times that of the terrestrial chlorine isotope ratio.
The isotope ratios tell you about the bird's diet. And that tells you where they dined.
An obvious restraint in the use of isotope ratios results from the need to employ mass spectrometers.
Dr Sharp said that if lunar rocks had initial hydrogen contents anywhere close to those of terrestrial rocks, the chlorine isotope ratios would not have so much scatter.
Early in Earth's history, volcanic eruptions spewed massive amounts of sulfur dioxide into the atmosphere, where UV sunlight broke down the gas and created the odd sulfur isotope ratios.
Whatever caused the ancient fluctuations in isotope ratios, the researchers contend, those variations are a sign that climate back then varied from year to year just as it does today.
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前交叉韧带造句
1、结果前、后交叉韧带、外侧副韧带损伤2例,前交叉韧带损伤3例,后交叉韧带损伤3例,内侧副韧带、前交叉韧带损伤1例,半月板损伤1例。2、损伤的前交叉韧带表现为双能肌腱模式下双能染*低于患者对侧正常的前交叉韧带。3、日志源地址为前交叉韧带有关的掉线。4、结论前...
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断幽造句
1、夜漫漫,心绫罗,愁红落雪,飞花飘,梦断幽兰,魂玉碎。2、加强科普知识宣传,阻断幽门螺旋杆菌传播途径,及时治疗幽门螺旋杆菌感染的患儿等有关措施。3、这四路大*中,至关重要的潘美和杨继业所统领的西路大*,这路大*虽然是直接攻打云州,可是这股*队真正的意图是先行北上,继...
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鼠迹造句
1、鼠目寸光鼠肚鸡肠鼠窜狼奔鼠迹狐踪鼠窃*盗投鼠忌器贼眉鼠眼胆小如鼠。2、白鱼入舟 求马唐肆 龙腾虎跃 鼠迹狐踪 首鼠两端 。3、目的塑料地板胶制鼠迹板测试居民区住宅外鼠密度可行*。4、方法:首先用鼠迹板法调查,然后用夹夜法。5、方法目测法、鼠迹调查...
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遣行造句
1、本论文的意义在于:论*了劳务派遣这种非标准化的用工方式值得肯定的方面,指出派遣行业在迎合市场需求的同时,确实存在派遣滥用的情况。2、几许渔人飞短艇,尽载*火归村落。遣行客、当此念回程,伤漂泊。3、寻又遣行参*王灵济出洋川,攻难当将赵英于南城,拔之。...
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