ガスボイラーが停止した後に取るべき安全対策?
Many gas-fired boilers do not run continuously throughout the year. When the enterprise is no longer in production or for other reasons, the boiler will be shut down. しかし, after the boiler is out of service, certain safety measures must be taken. それで, what safety measures should be taken after the boiler in the chemical plant is out of service?