经济复苏的迹象刚刚开始显现。The signs of an economic revival are only just beginning.英国广播公司刚刚成功地演示了一套新的数字无线电传输系统。The BBC has just successfully demonstrated a new digital radio transmission system.维拉队刚刚从甲级联赛中降级。Villa had just been rele...
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The method is presented for preparation metasilicate pentahydrate from residue after extracting magnesium from serpentine ore.以蛇纹石提镁残渣为原料,采用常压蒸馏法直接合成了六配位有机硅化物.Gold ore main type is auriferous quartz vein type.金矿床主要为含金硫化物...