A high strength, waterproof. easy ignition boiler briquette was made in laboratory by using the Changzi meager coal as raw material and two complex binders at cool pressing briquetting.是什么意思_A high strength, waterproof. easy ignition boiler briquette was made in laboratory by using the Changzi meager coal as raw material and two complex binders at cool pressing briquetting.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句