The prototype began its flight test program in early 1960, but unfortunately was badly damaged in an accident that was not the fault of any designdeficiency.
原型1960年年初开始的飞行试验计划,但不幸的是在一次事故中严重,这不是任何设计缺陷故障损坏。
2
Some improvements were presented by analyzing and demonstrating for the structural designdeficiency of the bleed valve of a heavy duty gas turbine bleed system.
Even the language designers quickly saw a deficiency in this design - in hindsight, it's a bit naive to think that there can never be behavior that isn't attached to a class.