During a test run this past weekend in Ocean City, a loud speaker reminded people every 15 minutes to keep their distance from each other when walking along the beach or the boardwalk.
But in the US, aside from test runs from a couple of companies like Domino's Pizza and small pilot projects in a handful of cities, they haven't really caught on.
Not wanting to disappoint the spectators and media though, he went on a test run anyway and hit a swell which caused the boat to start violently shaking at the high speeds.
The ESA took the opportunity to do a test run of Juice's instruments, which it will use to look for molecular signatures of habitability on the moons Europa, Ganymede and Callisto.
欧洲航天局借此机会 Juice 的仪器进行了测试,这些仪器将用于寻找木卫二、木卫三和木卫四上适宜居住的分子特征。
In this test run, electricity, not uranium, will furnish the energy; graphite-encased fuel pebbles, each about the size of a golf ball, will be dummies containing no radioactive material.