Creation: Production of 1 kg of PS requires the equivalent of about 2 1/4 kg of oil (raw material and energy). Styrene monomers are harmful to health.是什么意思_Creation: Production of 1 kg of PS requires the equivalent of about 2 1/4 kg of oil (raw material and energy). Styrene monomers are harmful to health.在线翻译_英语_读音_用法_例句