phase out 都有什么意思

逐步淘汰, 逐步结束
The machine has been phased out.
这种机器早已过时了。

1.Will that country phase out its oil exports?
那个国家会逐步停止输出石油吗？
2. He then hopes to phase out the battery completely.
然后，他希望将电池彻底淘汰出局。
3. We ought to phase these less successful products out.
我们应逐步停止生产这一类较差的产品。

逐步淘汰
逐步取消
分阶段停止使用

逐步停止/淘汰。
比如：The army plans to phase out the equipment as it becomes obsolete.
军队计划淘汰这些设备，因为它们已经报废了。

补充，还有波里面的反相位。同相位是phase in