常见例句双语例句Major EI fragmentation modes are rationalized on the basis of exact mass measurement, metastable scanning, and deuterium labelling.借助于精确质量测定、联动扫描、去焦技术以及同位素氘标记,对它们的碎裂方式作了详尽的总结和讨论。 返回 metastable scanning