Obviously, they know the difference between fluorite and ED.显然, 这些生产商们知道ED与萤石之间的差别.The seeming disorder of calcite highlights the geometric precision of fluorite.矿物质图片画廊.外观紊乱的方解石突出几何精确度的萤石.The cerium oxide preferably has...
定量供应很久以前就结束了饼干过剩的状况。Rationing had put an end to a surfeit of biscuits long ago.世界汽车工业的生产能力严重过剩。There is huge overcapacity in the world car industry.环保人士认为澳大利亚已经人口过剩。Environmentalists say Australia is already overpopulate...