Von Jouanne的另一项发明(同类中的第一个)是一台不需要下水就能对波浪-能量转换器进行测试的机器。

Another of Von Jouanne's inventions, the first of its kind, is a machine that tests wave-energy converters without having to get them wet.

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在公路上，这辆车能够像一般的巴士那样行驶，一旦下水，两台喷射式发动机就会开始工作，并使大巴在水中的航速达到8海里每小时。

While it operates like a normal coach on the road, when it is in water it is driven by twin water jets and can achieve a speed of eight knots.

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测量了包括两个连续记录台站在内共18个点的地下水的氡浓度。

Radon concentration in groundwater was measured at 18 points including two continuous recording stations.

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