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- Water contains hydrogen and oxygen. 水含有氢和氧。
- The luminous intensity on unit area. 单位面积上的发光强度。
- Oxygen enters into many compound bodies. 氧是许多化合物的组成部分。
- The family is the smallest social unit. 家庭是社会最小的单位。
- 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。
- Pressure is force per unit area. 压力就是电单位面积上的力。
- A set of data elements which are handled as a unit. 作为一个单元来处理的一组数据元素。
- The family is the basic unit of society. 家庭是社会的基本单位。
- 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。
- A metric unit of area equal to 10 ares. 十公亩面积的公制单位之一,等于十公亩。
- A metric unit of mass equal to 100 grams. 百克公制质量单位,等于100克。
- 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。
- A unit of power equal to 1,000 watts. 千瓦功率的单位,等于1,000瓦。
- Plants can absorb carbon dioxide and release oxygen. 植物可以吸收二氧化碳释放氧气。
- A unit of frequency equal to one cycle per second. 赫兹频率的单位,等于每秒一周
- A unit of currency in Chile, Panama, and Uruguay. 分智利、巴拿马和乌拉圭的货币单位
- Water is composed of the elements hydrogen and oxygen. 水是由氢元素和氧元素组成的。
- A metrical unit consisting of seven feet. 七韵步由七个音步组成的格律单位