keep constant
短语词组
- keep in constant touch 常川往来
- keep in constant 保持常量;保持在恒定;随时保持
- Keep a constant speed 保持恒速不变
- Please keep in constant contact 请随时保持联系
- keep the vacuum constant 保持真空度不变
- keep constant tperature container 保暖集装箱
- keep the pressure constant 保持恒压
- KEEP CONSTANT TEMPERATURE CONTAINER 保温集装箱
- Keep constant over a decade 十年如一日 返回 keep constant