DR

Objective To observe the characteristics of fundus images and fluorescin angiography (FFA) in diabetic retinopathy (DR) combined with retinal vein occlusion (RVO).

摘要目分析糖尿病视网膜病变(DR)合并视网膜静脉阻塞(RVO)眼底特征和荧光素眼底血管(FFA)图像特征。

Aimed at utilization of iron resources in pyritic slag,the study on production of metallized agglomerate with pyritic slag through coal based DR process was conducted.

为合理利用硫酸烧渣中铁资源，进行了煤基直接还生产金属化团块研究，提出了润磨球-预热焙烧-磁选-冷固结新工艺流程。

The heterogenite is partly treated in furnaces either in DR Congo or in neighbouring Zambia and then exported mostly to China via South African and Tanzanian ports.

水钴矿在刚果金或者邻国赞比亚入炉进行粗加工然后大部分经南非和坦桑尼亚港口出口到中国。