A team of physicists in the us has created an infrared laser beam at a point in mid air, by focusing a UV laser onto a tiny volume of oxygen molecules.
美国的一个物理学家团队通过将一束紫外激光聚焦于一小块氧分子中，发明了一种聚焦于半空中一点的红外激光束。
The Arcon is a recently developed combination of a top -blown oxygen converter and a DC arc furnace with a single electrode, which can alternate with the top oxygen lance.
电转炉是新近开发的将氧气顶吹转炉与直流电弧炉相结合的技术，其电极与顶吹氧枪可交替使用。
A rotermeter linkage device with a synchronous belt comprises an oxygen flow meter (10) and a laughing gas flow meter (9); flow control knobs (2) of the meters are provided with a gear respectively;
一种同步带转子流量计联动装置，包括氧气流量计 （10）和笑气流量计（9），流量计的流量控制钮（2）上 各装有齿轮；
As a consequence there is a large generation of reactive oxygen species and that is a culprit for a variety of things.
这个过程导致了活性氧族大量生成，而活性氧族是很多问题的罪魁祸首。
As a consequence there is a large generation of reactive oxygen species and that is a culprit for a variety of things.
这个过程导致了活性氧族大量生成，而活性氧族是很多问题的罪魁祸首。
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