| 释义 |
物理变化wùlǐ biànhuà物质变化中只是改变形态而没有生成其他物质的变化,如汽油挥发、蜡受热熔化等。发生物理变化时,物质的组成和化学性质都不改变。{physical change; change leading to changes in the form of a matter without producing another matter, as the volatilization of gasoline, the melting of wax due to heat, etc. When a physical change occurs, the composition and chemical properties of a matter do not change.} |