氧化铈较氧化镧更容易与钒反应,因而具有更强的抗钒能力.Cerium showed more effective than lanthanum for vanadium tolerance of FCC catalysts.结果表明,稀土氧化镧掺杂钼合金由于其细小的氧化镧颗粒和细小的晶粒的作用而具有较高的屈服强度.The rare earth lanthanum oxide doped molybdenum alloys containi...
他是四兄弟中个子最矮的。He'sthe shortest of four brothers.莫伊拉在较矮的长椅上躺下了。Moira stretched herself out on the lower bench.个子矮的孩子坐在前边.The shorter children are to sit at the front....
They were sickened by the scenes of misery and degradation they found.目睹困苦、潦倒的景象，他们感到心里极不舒服。What he saw there sickened him, despite all his years of police work.尽管他干了多年的警察工作，但在那里所见的一切还是让他感到恶心。There had been times when sh...