词汇	copper activity
释义	copper activity 铜活性
随便看	start-up a car start up accident start-up accident startup a company start-up after a cold shutdown start-up and commissioning startup and debugging start-up and hot standby start-up and operation Startup and shutdown start up and shut down start-up and shut-down Startup and shutdown of coal sampling equipment startup and shutdown of pulverizer start-up and shutdown of pulverizer start-up and shutdown operation start-up and shut-down optimization start-up and shutdown with variable parameters startup and test run startup control law start-up control valve startup application startup artist Start up a small business start-up blind-zone