1.Conclusions The focal lesion keratectomy with amniotic membrane transplantation is a valuable method fo...

1.结论病灶切除联合多层羊膜移植是一种治疗角膜溃有法。

2.This paper introduces the light gaso line etherify technology,brings fo rward the project of building the light gasoline etherify device on th e catalyst cracking cell in the refin ery plant.

2.绍了轻汽油醚化技术,提出了在炼油厂催化裂化单元建设轻汽油醚化装置案。