取得了可喜的进步 meaning in English

make encouraging progress

Make encouraging progress
取得了可喜的进步
With the development of modem biological science and technology , great progress has been made in tissue culthe as an importam means of science study ginkgo is a gymnosperm , so its tissue culture is especially hard . at present , the research aboot ginkgo tissue culture and genetic transformation was limited and it has not been reported abollt its success , so it is very necessary to establish ginkgo regeneration system
随着现代生物技术的发展，植物组织培养作为一种重要的研究手段取得了可喜的进步，裸子植物银杏组织培养尤其困难。但目前银杏组织培养和遗传转化的研究并不多，成功的例子还没有。建立一个银杏的高频高效再生体系已是刻不容缓的事。