投石机: 古代投掷物体之发射器,用作发射长箭或重型球状物.Ballista: Ancient missile launcher designed to hurl long arrows or heavy Balls.最大之投石机可相当准确地发射27公斤重物到约450 公尺 处的目标.The largest could accurately hurl 60 - lb ( 27 - kg ) weights up to about 500 ...
...Mike Morley, the producer of Central Television's Dennis Nilsen documentary.迈克·摩利，中央电视台播出的丹尼斯·尼尔森纪录片的制片人The null result of the Michelson - Morley experiment suggests that the effects of the ether are undetectable...
In the beginning, scooters were not in great demand.刚开始, 速克达的需求量并不大.Most places with population problems and good year - round weather have a large number of scooters.大多有人口问题以及一年四季都有好天气的地方,就会有许多速克达.Vespa collectors conti...