并且这一效率有望在2020年提高两倍。

And efficiency is expected to double again by 2020.

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两年以后，艾滋病毒治疗可及性已提高两倍，但仍然存在重大的挑战。

Three years later, access to HIV treatment has increased three-fold, but major challenges still remain.

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自动绕线机把精度控制在最小0.01毫米的同时也可以使生产效率提高两倍。

Automatic wending machine can control the accuracy under at lest 0.01 millimeter, and at the same time increase efficiency by two times.

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