So some renovations should be made,for example,increasing the solvent ratio of propane deasphalting;using hydrofinishing instead of clay treating;mo...
增加丙烷的溶剂比,用加氢补充精制代替
土精制等,此外,在含硫原
生产
时,对原
也应适当选择。
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Physical distancing, wearing of a well-fitted mask over your nose and mouth, making sure that you have clean hands, avoiding crowds, working from home if you can, getting tested and making sure that you seek appropriate care where needed.
保持身体距离, 佩戴贴合鼻口的好口罩,确保双手清洁,避免人群聚集, 若可能则居家办公,定期检测,并在需要时寻求当
疗护理。