其生产性能发生了质的改变。
量变到一定程度，必然实现质的改变。
Quantitative change to a certain extent, must realize qualitative change.
就在昨天和今天这么短暂的时间间隔里，美好的东西就已发生了质的改变。
Yesterday and today in such a short time intervals, good things will have a change.
为了改变这个模式，一个人必须开始去观察这神经质的现象。
In order to change that pattern, one must begin to observe the nervousness.
质调节是只改变供水温度，不改变循环流量的调节。
Temperature control only changes the temperature of water supply, does not change flow.
质调节是只改变供水温度，不改变循环流量的调节。
Temperature control only changes the temperature of water supply, does not change flow.
应用推荐