This pattern has never been used on the American flag.
这种模式还从来没有在美国国旗上出现过。
Though 37 years passed after the double arch and flat shell structure applied in the water power engineering, the rubber canvas faceplate has never been used.
薄壳空间结构具有很多优点，我国在水工闸门中使用双曲扁壳结构的历史已有37年，但尚未见到采用橡胶布面板的。
Bank regulators believe the 'systemic risk' clause in federal law gives them the authority to lift insurance limits, though it has never been used to do so before.
银行监管机构认为，联邦法律中设定的“系统性风险”条件赋予了他们取消保险上限的权限，虽然以前他们从没这么做过。
However, it has never been widely used before now.
然而，在此之前它从未被广泛使用。
Although the concept of use cases has been around for more than twenty years, many software practitioners have never actually used them or even been exposed to them.
尽管这些用例的概念自从二十多年前就已经生成，实际上许多软件从业者从没使用过它们或者甚至从来没有了解过他们。
Burgh is one of a growing number of patients who have been dosing themselves with a simple laboratory chemical that has never before been used to treat cancer in people.
有一种很简单的实验用药，以前从未用于治疗人类的癌症，可是现在自行决定服用这种“药物”的病人已经越来越多，伯格就是其中之一。
But while cotton accounts for nearly 40% of the fiber used worldwide to make clothing, there's one thing the plant has never been able to do well: feed people.
但是，尽管棉花纤维占据了全球制衣业所需纤维的近四成比例，有件事棉花始终没能做到：填饱人们的肚子。
For example, WS-ReliableMessaging and WS-Transaction have both been available for several years, but there has never been any formal testing done where both are used together.
例如，WS -ReliableMessaging和WS -Transaction已使用多年，但是将二者一起使用时，从未执行过任何正式测试。
Its peace has been used to encourage passiveness, and this was never the intent.
它的静寂被利用，去鼓励顺从，这绝非真正的意图。
Gene therapy has never before been used to treat a degenerative brain disease in humans and the success represents an important landmark.
以前基因治疗从未用于人类的神经退行性疾病，所以此研究是一个重要的里程碑。
I had never used Nikon D3 cameras before, but after only one day I got very satisfying results (th is sentence has been modified).
以前从没用过尼康d3，但在仅用了一天之后，我就对它的效果非常满意(以下删去若干字)。
Though there were sightings of the mysterious temple complex referred to as the "Temple of Gaia" before, it has never been clarified what exactly it was used for.
这种神秘的寺庙之前城被称为“大地之神盖亚的庙宇”，没有人知道它就是是做什么用的。
I honestly have never used any other acne cream that has been as effective at clearing my skin and non-irritating.
老实说，我从来没有使用过任何其它粉刺霜像它这样能有效地清理我的皮肤并且无刺激性。
Though the industry has used it before, it has never been applied to the same level of detail as it has in the commercial nuclear power industry.
虽然该行业中在以前已经使用过人为因素安 全分析，但是却从来没有将它应用到与商业核电工业中同样细致的水平。
Though the industry has used it before, it has never been applied to the same level of detail as it has in the commercial nuclear power industry.
虽然该行业中在以前已经使用过人为因素安 全分析，但是却从来没有将它应用到与商业核电工业中同样细致的水平。
应用推荐