Magma off the Canary Island of El Hierro has been spewing 20 metres high as the sea boils with a smell of sulphur.
随着散发着硫磺味的海面持续蒸腾，位于艾尔希洛岛（加那利群岛的南端岛屿）附近的岩浆已有20米高。
2
A general technical survey is made of China's sulphuric acid engineering design based on pyrite, metallurgical off gases, gypsum or phosphogypsum and sulphur.
对我国硫铁矿、冶炼烟气、(磷)石膏、硫磺制硫酸的工程设计进行全面的技术总结。
3
It bring up the methods of Improving the wet instrument of taking off the sulphur and dust on taking off the sulphur, taking off the dust, dissolving the smoke and maintaining equipments.