「bright yellow formed solid elemental sulphur in bulk」is not such an easy specification to maintain.
「亮黄色成型固体散装元素硫」并不是一个容易满足的技术要求。
recovered elemental sulphur can be an exceptionally pure bulk commodity (>99. 9%). the buyer would like to keep that purity all the way to the end user.
回收硫是一种异常纯凈的散装商品(纯度大于99.9%),在运抵终端用户的途中买方希望始终保持这一纯度。
technological research for direct reduction of so2 to elemental sulphur using methane (natural gas) as reduction agent is described.
介绍用甲烷(天然气)直接还原技术使冶炼烟气中so2生成元素硫的工艺研究。