氘是普通氢较重的稳定同位素。它是无色、无味、无毒的可燃气体。其沸点为-249.5℃。与分子氢一样,双原子氘分子也存在正、仲同分异构现象。室温下,氘正-仲异构体混合物的平衡组成为2:1,这种氘称为常态氘。降低温度,有利于向正氘转化。在20.4K时,平衡混合物含正氘97.8%,此时的氘称为平衡氘。
采用电解法和氘气吸附法研究了冷聚变现象。
Cold fusion has been investigated by the electrolytical method and the deuterium absorption method.
通过分析光纤的过氧基缺陷,用氘气对成品低水峰光纤进行处理,以降低光纤的氢敏感性。
The low water peak fiber is treated by deuterium in order to reduce the fiber's hydrogen sensitivity based on the analysis of peroxide defects in fiber.
实际上这是个加工厂一个全自动化的设施通过来从当地水源中提取氢气的重同位素来生产氘气。
This is the DEUT ERIUM PLANT, an automated facility for extracting the heavy isotope of hydrogen from the local water supply.
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