It provided strong evidence of the structure of D-N-A as a double helix. 它為脫氧核糖核酸結構呈雙螺旋線提供了有力證據。
Many of the databases along the double helix were shut down, closed, so that you began to function with very little data. 許多資料庫是順著雙螺旋線停止運行,關閉,讓你們開始運行很少的數據。