一类固体或半固体的天然的或合成的有机材料，一般为无清晰熔点的高分子量材料，多数树脂为聚合物。

Any type of solid or semi solid organic material of natural or synthetic origin, generally of high molecular weight with no defined melting point. Most resins are polymers.

youdao

提示：做菜是按口味做，而不是量材料——比如杯子和大汤匙的价值，是在17世纪的食谱中并不使用它们。

Tip: Cook food to taste, rather than measuring out ingredients - values like cups and tablespoons weren't used in 17th-century recipes.

youdao

提示：做菜是按口味做，而不是量材料——比如杯子和大汤匙的价值，是在17世纪的食谱中并不使用它们。

Tip：Cook food to taste, rather than measuring out ingredients — values like cups and tablespoons weren't used in 17th-century recipes.

youdao

What I really want to do is just give an example of what happens when you throw the thing, the material into a calorimeter and see how much the temperature changes.

我想做的是给出当,你把这些东西，这些材料扔进，量热计时会发生什么,看看温度会变化多少。

麻省理工公开课 - 热力学与动力学课程节选

So, if you could make automobiles with a high magnesium content, you would reduce the mass, reduce the energy required, and thereby reduce the environmental impact.

所以，如果你能用含镁量,很高的材料来制造手机，你就能减轻手机的质量，减少制造所需能量，因此减轻了对环境的破坏。

麻省理工公开课 - 固态化学导论课程节选