Analyses the reason of antiseptic of boiler heating system, takes some protecting measures. To be sure it's safely and economically running.
分析热水锅炉采暖系统腐蚀的原因，提出应对措施，保障了锅炉的安全经济运行。
If the PF30 takes a hit from a power surge larger than it can safely handle, it immediately stops passing current to your equipment.
如果PF 30需要触及激增从权力大于它可以安全地处理，立即停止目前的传递到您的设备。
Once fire takes place, people on the site can wear the fire escape mask, which is a fire-resistant and heat-resistant helmet, to protect themselves, so they can leave the fire safely.
火灾逃生面具是一旦发生火灾，在场人员能迅速戴上阻燃、隔热的头罩，能保护生者不受伤害，安全离开火场。
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