When we reach the goal for guinea-worm disease – and we are very close – this will be the first disease eradicated by behavioural change alone, without support from a vaccine or drug.
我们现在已非常接近实现关于几内亚蠕虫病的目标，该目标一旦实现，这将是无需疫苗或药物，只通过改变行为予以根除的第一个疾病。
In designing chain drive is applied other than using worm wheel drive as the imported equipment does. Using two-end bearing support will greatly increase the thickener's running cycle.
用制造和安装精度要求不高的链传动取代了原进口设备采用的蜗轮蜗杆传动，采用双端支承方式和滚动轴承，有效地提高了设备的运行周期。
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