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- isotopic isomer 同位素的同质异能素
- Allene is an isomer of methyl acetylene. 丙二烯是甲基乙炔的一种异构体。
- The state or condition of being an isomer. 同分异构状态以同分异构形式存在的状态或情形
- Isotopic discrimination is not likely. 同位素甄别是不可能的。
- Isotopic geochronology and geochemistry II. 同位素地质年代学与地球化学2。
- An isomer of retinoic acid, used in the treatment of acne. 一种视黄酸的异构体,用于治疗粉刺
- Measurement of geologic time,as through isotopic radioactive decay. 地质年代测定是通过放射性同位素衰变来测定的。
- From 3.5 to 0 ka B.P. ,lake water was in an isotopic steady stage. 5~0ka B.;P;湖水处于同位素稳定阶段。
- An isotopic analysis of the grains has made that fear come true. 一项对这些颗粒的同位素分析让这种担心成真了。
- How could such a change in isotopic composition have come about? 同位素的组成有这样的变化,究竟是如何发生的?
- isotope isomer 同位素异构体
- A structural isomer of citral that is obtained from the oxidation of geraniol. 香叶醛由香叶醇氧化得到的柠檬酸的结构上的同质异构体
- The isotopic signatures of most ancient limestones indicated the same process. 大多数古代石灰岩的同位素特征说明了同样的过程。
- Measurement of geologic time, as through isotopic radioactive decay. 地质年代测定通过放射性同位素衰变来测定地质年代
- The term "normal" applies to the isomer that has all its carbon atoms linked in a straight chain. 对这类异构体采用“正构”一词是因为这类异构体的全部炭原子都以直链形式连在一起。
- The most likely alternative structure, the tetrahedron, would produce only one isomer for this composition. 在这种情况下,最可选的结构是四面体,并且对于这个化合物将只产生一个异构体。
- One of a group of enzymes that catalyzes the conversion of one isomer into another. 异构酶一种能对一种异构体转化为另一种异构体进行催化物的一组酶
- Being a noble gas, it resists chemical bonding with other elements and is thus easy to purify for isotopic analysis. 由于氙是惰性的,不易与其他元素产生化学键,因此很容易纯化以进行同位素分析。
- Solutions of pure isomer will rotate the plane of polarized light either to the right (dextro: D-) or to the left (levo: L- ). 溶解纯的同分异构体将会使偏振光的翼面既可以转到右面(右旋的D一型)也可以转到左面(左旋的L一型)。