A hydrocracking catalyst with high selectivity to middle distillates was developed.开发了一种具有较高的中油选择性的加氢裂化催化剂.Abstract: Typical failures in domestic fixed bed hydrocracking uni t over the years were summarized.文摘: 总结了我国固定床加...
However, many customers found the smell of this product distinctly off-putting.然而,很多顾客觉得该产品有一股异味,非常难闻。He moved around the room, putting his possessions together.他在屋里走来走去,忙着把自己的东西放在一起。They think that any legislation that ...