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- Water contains hydrogen and oxygen. 水含有氢和氧。
- Oxygen enters into many compound bodies. 氧是许多化合物的组成部分。
- Some metals weld better than others. 有些金属容易焊，有的不容易焊。
- Mars is too dry and poor in oxygen. 火星上面过于干燥，并且缺乏氧气。
- Water is composed of hydrogen and oxygen. 水由氢和氧组成。
- Fish take in oxygen through their gills. 鱼通过鳃摄取氧气。
- The oxygen react vigorously with the impurity in the iron. 氧气与铁中的杂质发生剧烈的化学反应。
- It takes speed and skill to weld steel at this heat. 在这样的温度焊钢需要速度和技术。
- The oxygen workshop caught fire and set off a chain of explosions. 氧气车间着了火，引起了一连串的爆炸。
- Plants can absorb carbon dioxide and release oxygen. 植物可以吸收二氧化碳释放氧气。
- It take speed and skill to weld steel at this heat. 在这样的温度焊钢需要速度和技术。
- Water is composed of the elements hydrogen and oxygen. 水是由氢元素和氧元素组成的。
- oxygen weld 氧气焊接,气焊
- There was a shortage of oxygen at the top of the mountain. 山顶上缺氧。
- It takes speed to weld steel at this heat. 在这样的高温下熔接钢铁需要快速。
- They weld the pieces of a broken axle. 他们焊接断了的车轴。
- His job is to weld parts together. 他的工作是焊接零件。
- An organism, such as a bacterium, requiring oxygen to live. 好氧菌需要氧气生存的有机体，例如细菌
- Oxygen masks are used in aircraft only in emergencies. 飞机上的氧气面具只用於紧急情况。
- Before applying heat for a weld, the plates should be clamped together. 在用热进行焊接之前，必须把金属板紧紧地夹在一起。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
