To guarantee that the performance of the flame arrester to achieve the purposes of safe use, should check and maintain the flame arrester regularly.

为确保阻火器的性能达到安全使用的目的，对阻火器应定期进行检查、保养。

youdao

Light a check leak lamp, hold the air conduit on the halogen lamp, be pipe orifice close to system ooze, the flame color becomes royal blue, the scilicet marks to here have a great deal of leakage.

点燃检漏灯，手持卤素灯上的空气管，当管口靠近系统渗漏处时，火焰颜色变为紫蓝色，即表明此处有大量泄漏。

youdao

The attention prompted thousands of football fans to check out of the game and check up on McCarron's flame, turning "Katherine Webb" into Google's second-hottest search -- behind only McCarron himself.

CNN: Game? What game? There's a pretty woman in the stands!