This practice has remained unaltered for centuries.
这种习俗已数百年未变。
1.不变的,依然如故的
1.not changed in condition, appearance, etc.
1.Perhaps he asks you to inspect it to see that it is indeed real, unaltered, normal.
或许他还会让你检查一下，让你知道这个东西是真的，没做过手脚，很正常。
2.Here, despots of every stripe continued to hold sway, unaltered by time or circumstance.
各种各样的独裁者持续统治着这里，不受时间和环境变化的影像。
3.Mozart could afford a more unaltered repetition of his themes because his themes tended to be full-blown lyrical melodies.
莫扎特能够不断重复他的主题是因为它们充满了抒情的旋律。
4.So far, Open Access has taken over this logic basically unaltered, providing only for a redesign of the funding methods and cash flows.
到目前为止，开放获取基本上还是采用这种逻辑而未加改变，只是重新设计了筹资模式及现金流向。
5.Up to 95 percent of antibiotics are excreted unaltered, seeping into the environment and possibly encouraging antibiotic resistance there.
高达95%的抗生素经动物体排泄会原封不动的进入环境中，进而促使具抗药性病菌的生长。
6.Even when laws have been written down, they ought not always to remain unaltered.
即使法律已经写下，它们也不必须保持一成不变。
7.Otherwise, the watermarked image is considered authentic, i. e. , unaltered since the watermark insertion.
否则，水印图像被认为是真实的，例如，改变自水印插入。
8.The input evidence is used unaltered as the final set of evidence used for policy resolution .
原封不动地使用输入证据作为用于策略决策的最终证据集。
9.For a given system, in which PELE and target are unaltered, there is optimal thickness of the target for PELE exerting its lateral effect.
对某一既定的弹靶系统而言，存在最利于PELE发挥横向效应的靶板厚度。
10.The terms of the long-term contract will remain unaltered.
长期合约条款不变。