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- The infrared ray assay results showed that the structure of glucosamine sulfate marked by radio isotope is same as standard. 结果表明,经红外线检测证实本研究制备的放射性同位素标记的氨基葡萄糖硫酸钠的结构与氨基葡萄糖硫酸钠标准品完全相同。
- Base flow separation method and isotope technique were adopted to study the cyclic relationship between river water and groundwater. 通过基流分割计算和同位素技术的应用,研究了区内地下水和地表水之间的水循环规律及地下水对黄河的贡献。
- Stable isotope technique is a new, innovative approach to assess the source and natural attenuation of organic pollutants in environment. 摘要稳定同位素技术是近来发展起来用于识别和评价环境有机污染物来源和降解的新方法。
- This study prepared glucosamine sulfate with glucosamine hydrochloride marked by radio isotope and observed the osmosis ability of glucosamine sulfate passing through skin in vitro of test animal. 以放射性同位素标记的氨基葡萄糖盐酸钠为原料制备放射性同位素标记的氨基葡萄糖硫酸钠,同时观察其穿过离体实验动物皮肤的能力。
- Water isotope technique is an important method in the field of groundwater studies,which can help to explain groundwater activity mechanism from macroscopy and microscopy. 水同位素技术已成为研究地下水的重要手段,有助于从宏观和微观上阐明地下水活动机理。
- In recent years there has been a prosperous application of stable isotope technique, a new method applied in modern ecology research, in many ecological research fields. 稳定性同位素技术是现代生态学研究中的一门新兴技术,在生态学研究的诸多领域都展示了广阔的应用前景。
- Double stable isotope technique, a safety and accurate method todetermine calcium absorption in humans, has been recently applied to evaluatecalcium bioavailability. 双稳定核素示踪技术是一种可以安全、准确地测定人体钙吸收率的方法,近年被逐渐用于评价钙剂生物利用度。
- Carbon isotope techniques can be used to study the allocation and turnover of recently photosynthesized C. 植物近期光合C分结构性C和代谢C;
- enzymatic double isotope technique 酶的双同位素术
- The hall-life measurement of long-lived radio isotopes, cross section measurement of nuclear reaction, searching for super heavy elements, cosmic study and solar neutrino detection are the main components which have been discussed. 包括放射性核素半衰期的测定、核反应截面的测量、超重元素的寻找、宇宙射线和太阳中微子性质等方面的研究工作。
- Stable isotope techniques have been used in a few cases to evaluate possible contribution of fog water to stream flow, plant transpiration, or groundwater recharge. 露水和土壤吸附水的稳定同位素研究是干旱区凝结水研究的重要方向;
- Therefore, stable isotope techniques can be used to measure nutritional parameters in all human populations such as ordinary people, sportsmen and patients. 在动物营养领域,则可以用来测定动物的生长发育和肉蛋产量。此技术已成为人体营养、临床试验和动物营养中不可缺少的基本手段。
- A transistorize radio takes no time to warm up. 晶体管收音机不需要预热时间。
- Of all kinds of stable isotopes, 15N stable isotope technique plays a very important role in the research on nitrogen cycling in natural ecosystems and is still functioning efficiently now. 其中,稳定性同位素15N自然丰度法近年来在生态系统氮素循环研究中发挥了和正在发挥着极为重要的作用。
- Radio Beijing sends the news all over the world. 北京广播电台向全世界播送新闻。
- She petitioned her neighbor to turn down the radio. 她请求邻居把收音机关小点声。
- Nitrogen isotopic technique was used to study the situation and seasonal change of nitrogen pollution in inflowing rivers and an outflowing river of Hongfeng Lake in this paper. 利用氮同位素技术对贵州红枫湖各输入、输出河流氮污染状况和季节性变化规律进行了研究,并通过对输入河流和输出河流的氮对比,探讨红枫湖的氮负荷变化。
- They've been plugging his new show on the radio. 他们一直在电台上宣传他的新节目。
- How much do you think this radio will sell for? 你认为这台收音机会卖多少钱?
- I am able to pick you up on the short wave radio. 我能用短波收音机收听到你的信号。