They have cleared up the cause of the physical change.
他们已经搞清楚这个物理变化的成因。
For example, melted (溶解的) cheese has gone through a physical change.
例如，奶酪的溶解便是一个物理变化。
If a change does not affect the food's chemical composition, we call it a physical change.
如果一种变化不影响食物的化学成分，那我们便称之为物理变化。
If a physical change like that led to better toolmaking, then its owner would have survived better.
如果这样的身体变化导致更好的工具制造，那么变化的拥有者能够更好地存活下来。
This belongs to a physical change.
这属于物理变化。
这是一个物理变化。
Another physical change would happen.
另一个物理变化也会发生。
This change of state is a physical change.
这种物质状态的变化是物理变化。
This change of the state is a physical change.
这种状态的变化是物理变化。
When ice cream melts, a physical change happens.
当冰淇凌融化了，一个物理变化也发生了。
Strangely, it has involved little physical change.
奇怪的是，却几乎没有多少身体上的改变。
A force is the thing that causes a physical change.
一个力就是导致物理变化的东西。
In the case of a physical change no new substance is found.
就物理变化来说，不会发现新物质。
In the case of a physical change no new substance is formed.
就物理变化来说，不会产生新的物质。
In the case of a physical change no new substance is formed.
就物理变化来说，没有新的物质产生。
In the case of a physical change, no news substance is formed.
就物理变化来说，不会产生新的物质。
This change of state is a physical change and not a chemical one.
这种状态变化是物理变化，而不是化学变化。
This change of state is a physical change and not a chemical one.
这种状态的变化是物理变化，而不是化学变化。
Generally speaking, no new substances forms in a physical change.
总的来说，物理变化不产生新的物质。
Any change in which no new substance is formed is a physical change.
凡是没有产生新物质生成的变化都是物理变化。
Is this a chemical change or a physical change when wood becomes desks?
木材变成桌子是物理变化还是化学变化？
There is a dramatic physical change that occurs during the process of gelation.
在凝胶的过程中，聚合物的物理性质发生巨大的变化。
In a physical change the molecules remain the same, no new substance being found.
在物理变化过程中，分子保持不变，没有新的物质生成。
So, there's really two things going. First thing is the mental change, the next thing is the physical change.
因此，实际上会有两个方面的变化，首先是心理上的变化，然后是物理上的变化。
HHMI researchers have now learned that this pairing causes a physical change in the shape of the kinase domain.
霍华德·休斯医学研究所的研究人员现已经得知，这种配对导致了激酶结构域形状上的物理变化。
HHMI researchers have now learned that this pairing causes a physical change in the shape of the kinase domain.
霍华德·休斯医学研究所的研究人员现已经得知，这种配对导致了激酶结构域形状上的物理变化。
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