Their initial calculations and scale-model wind-tunnel experiments convinced them they wouldn't need a strong wind to lift the 33.5-tonne column.
他们最初的计算和风洞比例模型实验使他们确信，不需要强风就能提起33.5吨的柱子。
2
The first method in Listing 7 sets the initial state, updating an existing ActiveRecord column.
清单 7 中的第一个方法设置了初始状态，更新已有的 ActiveRecord 列。
3
But during the 13 years that the author of this column has spent in the United States, he too has found his initial exuberance clouded by darker thoughts.