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- Stoichiometry tells us the useful way to help measure the conversion and conservation of matter taking part in a chemical reaction. 化学计量学给我们指出了有用的方法，帮助我们确定在化学反应中发生的物质转换和守恒。
- According to the “law of the conservation of matter,” those constructing human cerebrum will not disappear, and will only change from one form to another. 根据“物质不灭定理”，作为人脑的物质不会消灭，只能从一种形式转变为另外的形式。
- Our community is a leader in the conservation of wildlife. 我们社区在野生动物保护方面走在前头。
- Based on the law of conservation of mass, the law of cause and effect and the inseparability of matter and reason, the law of conservation of matter and reason is proposed as an integrated discipline. “物质不灭定律”（质能守恒定律）举世公认，但事出必有因、无因亦无果。既然“物质不灭”，就该有不灭的原因、道理。能够论证“物理不灭定律”并用其造福人类、造福万物，是一件很开心的事情。
- Who discovered the conservation of energy? 谁发现了能量守恒？
- He dwelt on the importance of matter. 他详述了这件事的重要性。
- A soft, moist, shapeless mass of matter. 浆状物一团柔软、潮湿且无固定形状的东西
- Most people have come to accept the need for conservation of natural resources. 现在大多数人已认识到保护自然资源的必要。
- The universe was created out of a primordial ball of matter. 宇宙是从一个本来就存在著的球体中产生出来的。
- You must master the law of conservation of energy. 你必须掌握能量守衡定律。
- That egghead published a new theory of matter last month. 那位知识分子上个月发表了一个新的物质论。
- There is a need for the conservation of trees. 有必要保护树木。
- Application of law of conservation of momentum. 四、动量守恒定律的应用。
- Motion is the mode of existence of matter. 运动是物质的存在方式。
- Conservation of water is of great importance. 节约用水非常重要。
- Weight is an inherent quality of matter. 重量是物质固有的特性。
- Conservation of water is of great importance in desert areas. 沙漠地区实行控制用水非常重要。
- It's a property of matter to attract. 物质有引力。
- Stone is an inert mass of matter. 石头是一块无生命的物体。
- This sweeping generalization is the law of conservation of energy. 这一透彻的概括就是能量守恒定律。
