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...
水中含量极小的化学成分minute amounts of chemicals in the water这两个词之间在意义上差别是极小的.There is a negligible difference in meaning between these two words.我住在一间极小的茅屋里.I live in a tiny cottage....
It's a constant struggle to try to keep them up to par.要让他们达标，需要不断努力。All the doors have been bricked up to deter vandals.所有的门都用砖堵了起来，防止破坏分子闯入。Across the river the railway track ran up to the pithead.铁轨跨过这条河直达矿井口。...
Captain David Clement and 150 commandos stormed the port this morning.戴维·克莱门特上尉和150名突击队员今天早上对港口展开突袭。Lozano claimed that motorcycle driver Clement Lloyd was trying to run him down.洛扎诺声称克莱门特·劳埃德骑着摩托车想把他撞伤。St Clement Danes ...