A new presulfidation process of hydrotreating catalyst in the hydrogenation is introduced.介绍了一种加氢催化剂器内预硫化新工艺.Determination method of Pd content in hydrotreating catalyst by ICP - AES was established.建立了采用电感耦合等离子体发射光谱(ICP...
During fever a large quantity of fluid is lost in perspiration.发烧时，大量水分会通过排汗而丧失。After some initial problems, acetone was successfully produced in quantity.解决了最初的一些问题之后，终于成功地制造出了大量丙酮。The sheer quantity of detail would bem...
The lumberjack sweats as he cuts down a tree.伐木工人边砍树边擦汗。Dad had been a lumberjack in Washington and Oregon.爸爸曾经在华盛顿州和俄勒冈州做过伐木工.' sorry,'says the head lumberjack and sown, " you're just too small. "伐木工头看了看说...
霜寒凝冻的空气传来短促刺耳的闹钟声.The shrill, quick sound of a clock bell rang out on the frosty air.它们虽然高贵, 但是同样具有不畏霜寒的特性.Although they are noble, but have no fear of the same characteristics of cold cream....
这些发展早在十多年前的萌芽阶段就已预见到。These developments were foreseen in embryo more than a decade ago.树上的萌芽是春天来临的征兆.Buds on the trees are a sign of spring.今年树萌芽得早.The trees are budding early this year....
The actors not performing sit at the side of the stage in full view, waiting for their cues.还未轮到演出的演员坐在舞台旁边能看得一清二楚的地方，等待着他们的出场提示。She does not tiptoe through life taking cues from others.她从来不依葫芦画瓢小心翼翼地生活.Increased hunger ...