Drift tubes , however , are unwieldy .

然而漂移管很笨重。

It looks unreformed , unwieldy and ultimately unsustainable .

它看上去完全没有实施改革，笨重庞大，根本不可持续。

One of its trickiest tasks would be handling japan 's unwieldy bureaucracy .

一项艰巨的任务是改革日本庞大的政府机构。

The results were heavy , unwieldy devices with lenses up to 30 centimeters thick .

这一方法的结果是需要带有高达30厘米厚的透镜的笨重装置。

He once lost control of an unwieldy contraption nicknamed the flying bedstead that was designed to help astronauts train for the lunar landing .

他曾经失去过对一个绰号为飞行试验器的笨重装置的控制，它是被设计用来帮助航天员训练登月的。