超精细光谱;非线性光学;简并四波混频技术;等效光栅;同位素检测。
Hyperfine spectrum; Nonlinear optics; Degenerate four waves mixing; The equivalent grating; Isotope detecting.
再加上检测同位素氧,分析表明至少有一具吃过小米的无头尸的主人,来自东欧,或者来自高海拔地区。
Combined with oxygen isotope testing, the analysis suggested that at least one headless millet-eater came from Eastern Europe or somewhere with access to water from high altitudes.
并且,他们或许要对2号反应堆周边其他放射性同位素的含量,包括对铯、钡、钴、镧的浑浊度,进行重新检测。
And they still may need to retest for other radioactive isotopes that had been found in the seawater around the No. 2 reactor, including troubling quantities of cesium, barium, cobalt and lanthanum.
SEPA的放射性物质主任詹姆斯 格梅尔说,”检测出来的放射性碘同位素浓度极低,不对公众和环境构成影响.
Dr James Gemmill, Sepa's radioactive substances manager, said: "The concentration of iodine detected is extremely low and is not of concern for the public or the environment.
在18件样本上检测了氧和锶的同位素。这两种元素在牙齿成型时,会固定在牙釉质上。
Oxygen and strontium isotopes, which are fixed in dental enamel at the time of tooth formation, were tested in 18 subjects.
树木年轮的碳同位素和冰核中钚同位素的检测都显示出在上述阶段的大多数时间内太阳辐射能量出现下降。
Isotopes of carbon in tree rings and beryllium in ice cores show a drop-off in solar radiation during much of the period.
这一数据发布数小时后,核电站操作员对这些数据进行了澄清,重新检测后,只有微不足道的一些同位素被发现。
Several hours after releasing the initial results, the plant operator said that those readings had been in error, and that retesting had shown negligible amounts of the isotope.
对太阳风进行检测发现,太阳的同位素比例与地球、月球和火星不同,说明还有其他的因素参与了行星的起源。
Solar wind samples reveal that Earth, the moon and Mars have different isotopic ratios than the sun, indicating some additional wrinkles in the planetary origin scenario.
本文讨论了氢氧化铝料浆的固体含量和密度之间的关系及固体含量的密度检测方法。介绍了同位素密度计的现场应用情况。
This paper discussed the relationship between solid content and density of aluminium hydroxide slurry and describes the measurement method and in situ applications of isotopic densitometer.
将固相微萃取(SPME)技术与冷阱富集系统相结合,对水体中痕量挥发性有机物进行了单体碳同位素分析,方法检测限较常规SPME提高了一个数量级。
A method combining solid phase microextraction (SPME) with cryofocus technique was developed for the compound-specific carbon isotope analysis of volatile organic compounds in aqueous phase.
介绍了“同位素示踪”法和“db—3 i型堤防管涌渗漏检测系统”在洪泽湖大堤渗漏检测中的应用情况,并对两种方法的应用进行了对比。
This paper introduces the applications of "isotope tracting method" and "DB-3 I embankment piping and leakage detecting system" to Hongze Lake embankment, and compares the two methods.
放射性同位素法检测肺癌细胞蛋白激酶C(PKC)活性。
Protein kinase C(PKC)activity of cell membrane was detected.
近年来,随着检测灵敏度和分辨率的提高,该技术在放射性核素含量和同位素比值测定中的应用日益突出。
In recent years, with the improvement of sensitivity and resolution, its application was increasing to determine radionuclides content and isotope ratios.
在烃类天然气中,由于稀有气体的含量很微,所以其同位素组成的检测相对较困难。
The measurement of the noble gas isotopes in hydrocarbon natural gases is relatively difficult because their content is very low.
一种检测甲烷是否是由生命制造的方法是同位素比测试。
One method to test whether life produced this methane is by measuring isotope ratios.
在沿石笋生长中轴切开的光面上,按每毫米2个样点进行取样,隔样检测氧、碳同位素,共获取624组同位素数据。
The oxygen and carbon isotopic samples are collated at two per mm along the mill finish down the growth axis, and tested at an interval of four samples, get 624 pairs of isotopic data altogether.
同位素真实性分析、果汁质量检测,卫生要求检测,真菌毒素、有机酸、糖类、重金属、元素分析等。
Isotope analysis for authenticity, juice quality and hygiene testing, mycotoxins, organic acids, sugars, heavy metals and elements analysis.
用同位素比质谱方法可在4或5天之内检测到阳性结果。
用同位素比质谱方法可在4或5天之内检测到阳性结果。
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