300-year-old
1.Cas A is the 300-year-old remnant created by the supernova explosion of a massive star.
2.The brooms made by a 300-year-old family-run broomstick business in Hampshire were chosen to appear in the fourth Harry Potter film.
3.Staying in this 300-year-old cottage, Synge listened to the soft Gaelic, wrote down old stories about fairies and sea creatures, sunned himself on top of the ring fort at his doorstep and went out to sea in small curraghs.
4.They analyzed approximately 1,900 digital cross-sectional images of the 3,300-year-old mummy of Tut and presented their findings at the annual meeting of the Radiological Society of North America (RSNA) under way in Chicago.
5.A crowd of around 300 local people and tourists had joined journalists outside the 800-year-old Ballintubber Abbey, in County Mayo, western Ireland.
6.To investigate the effect of high-pressure processing technology on the tenderness of cattle muscle, four simmental bulls of 2-3 year-old, 500kg gross weight were chosen ramdomly. Semitendinosus was treated respectively by high-pressure at 100, 200 and 300MPa for 2, 6 and 10min after slaughter.
7.After root of one -year -old grape seedlings (Vitis labrusca L. kyoho) soaking with 300mg/kg and 500mg/kg BcFA for 12 hours, the seedlings were transplanted in sand to observe their growth and physiological responses. The results showed that formation and growth of the new roots were promoted by BcFA, and the ratio of root to crown was increased ;
