phase change

相变，相变

同：	[n.] phase transition, physical change, state change

In TTL NAND circuit, a phase inverter with its output circuit changed to an open collector
在TTL“与非”门电路中，输出级改用集电极开路的一种反相器。收藏
The change in enthalpy may be expressed in terms of the specific heats of the phases and the temperature and pressure changes
热焓的变化可以表达为各相比热和温度压力的变化。收藏
Differential Thermal Analysis did not reveal the ammonium perchlorate phase change from rhombic to cubic
差热分析没有测出过氯酸铵从正交晶向立方晶的相变。收藏
Modulation techniques for transmitting digital information in which that information conveyed by selecting discrete phase changes of the carrier
借助所选择的离散的载波相位变化来传输数字信息的调制技术。收藏

a change from one state (solid or liquid or gas) to another without a change in chemical composition
[同] phase change, phase transition, physical change, state change

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