Two days after the accident the federal aviation administration ordered small fixed-wing planes not to fly over the east river unless the pilot is in contact with air traffic controllers.
飞机失事两天后，联邦飞航管理中心下令小型固定机翼的飞机不可以飞越东河，除非飞行员先行与航空控制员联络。
I don't know if you know how a spark plug works, but for the electrical current to fly into operation in a spark plug, the two points of contact have to be gapped.
我不知道你们是否知道，火花塞是怎样工作的，在电流通入火花塞中使它运转之前，两个接触点之间需要有空隙。
1961 - Venera program: Venera 1 becomes the first man-made object to fly-by another planet by passing Venus (the probe had lost contact with Earth a month earlier and did not send back data).
1961年的今天，维尼拉计划：维尼拉1号太空揣测船在经过金星后，成为首架人造的、能飞往其他星球的物体。
1961 - Venera program: Venera 1 becomes the first man-made object to fly-by another planet by passing Venus (the probe had lost contact with Earth a month earlier and did not send back data).
1961年的今天，维尼拉计划：维尼拉1号太空揣测船在经过金星后，成为首架人造的、能飞往其他星球的物体。
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