n. any distinct time period in a sequence of events
n. (physical chemistry) a distinct state of matter in a system; matter that is identical in chemical composition and physical state and separated from other material by the phase boundary
n. a particular point in the time of a cycle; measured from some arbitrary zero and expressed as an angle
n. (astronomy) the particular appearance of a body's state of illumination (especially one of the recurring shapes of the part of Earth's moon that is illuminated by the sun)
n. 时期, 局面, 方面, 位相, 相, 阶段
vt. 使调整相位, 使定相, 使一致, 逐步执行, 实行
[计] 阶段
1. The project is in the final phase of development.
这个项目处于开发的最后阶段。
2. We will start the next phase of the experiment next week.
我们下周将开始实验的下一阶段。
3. Each phase of the plan must be completed on time.
计划的每个阶段都必须按时完成。