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- One, introductive 20 centuries 30 time are German the aggregate reaction that discovered ester of different cyanic acid and lively hydrogen compound, initiated polyurethane industry times thereby. 一、前言二十世纪30年代德国人发现了异氰酸酯与活泼氢化合物的聚合反应，从而开创了聚氨酯工业时代。
- Water contains hydrogen and oxygen. 水含有氢和氧。
- Water is a compound of hydrogen and oxygen. 水是氢和氧的化合物。
- Water is the compound of oxygen and hydrogen. 水是氢氧化合物。
- Water is composed of hydrogen and oxygen. 水由氢和氧组成。
- Oxygen enters into many compound bodies. 氧是许多化合物的组成部分。
- Determination of Extracting Carbon Hydrogen Compound in Beeswax by Using Active Aluminum Oxide as Adsorbent 活性氧化铝吸附法测定蜂蜡中碳氢化合物含量
- Water is composed of the elements hydrogen and oxygen. 水是由氢元素和氧元素组成的。
- Air is a mixture, not a compound of gases. 空气是气体的混合物，不是化合物。
- Rose is a plant with compound leaves. 玫瑰是复叶植物。
- "Broad-shouldered" is a compound word. "Broad-shouldered"是个复合字。
- Common salt is a compound of sodium and chlorine. 食盐是钠和氯的化合物。
- My friend's family lives in the compound. 我朋友的家住在那个大院里。
- A chemical compound consisting of such molecules. 二聚化合物这种聚合物形成化合物
- Water may be resolved into hydrogen and oxygen. 水可以分解为氢和氧。
- Water is a compound containing the elements hydrogen and oxygen. 水是含有氢元素和氧元素的化合物。
- An organic compound containing many double bonds. 多烯一种包含许多双键的有机化合物
- The hydrogen is the known the lightest element. 氢是已知的最轻的元素。
- Hydrogen and oxygen combine/Hydrogen combines with oxygen to form water. 氢与氧化合成水。
- A molecule of water consists of two atoms of hydrogen and one atom of oxygen. 水分子含有两个氢原子和一个氧原子。
