In one case, executives discovered a coating advertised as pure gold that masked a complex alloy, which included rare metals such as osmium, iridium, ruthenium and rhodium.
在一个案例中，业内高管发现一种号称纯金的涂层其实是一种复杂的合金，含有锇、铱、钌、铑等稀有金属。
Actually, a very rare case, but one that'll help us just set up the formalism of, and the mechanism for us to proceed.
实际上这种例子很少，但是它可以帮助我们，建立一种框架或者机制，然后我们就可以利用，这些结果来继续我们的讨论。
In fact, Yang Chengxing's case is by no means a rare one.
事实上，毫无疑问，杨诚星的例子是很罕见的。
Diagnosis of a cyst in a nerve body is very rare, and the one reported here might be the first such case.
神经内囊肿的诊断是极为罕见的，本文所报导的很可能是第一例。
Many of the components in the automobile would be easily detachable to save time and energy in the rare case of repair, because no one would profit by servicing automobiles or any other products.
在罕见的维修状况中，汽车中的许多元件将会是可容易拆卸的，以节省时间和能源，因为没有人会从维修汽车这件事或任何其他产品中获利。
On rare occasions one does hear of a miraculous case of a married couple falling in love after marriage, but on close examination it will be found that it is a mere adjustment to the inevitable.
在罕见的情况下，一听到一个神奇的情况下爱上结婚后的已婚夫妇，但仔细检查会发现，它仅仅是一个调整的必然。当然，越来越多使用对方是从遥远的自发性，强度，和爱美，没有婚姻的亲密关系必须证明有辱人格的女子和男子。
Caesarean scar pregnancy is one of the rare ectopic pregnancy with unclear incidence, case history and mechanism.
剖宫产瘢痕妊娠是最罕见的异位妊娠之一，其发病率、病史和机制还不十分清楚。
Mesentery is a rare site for botyroid embryonal rhabdomyosarcoma and on extensive search we found only one case of a botryoid rhabdomyosarcoma in a child of 2 years.
葡萄状胚胎型横纹肌肉瘤原发于肠系膜罕见，大量的研究仅发现一例二岁孩子罹患葡萄状胚胎型横纹肌肉瘤 。
Mesentery is a rare site for botyroid embryonal rhabdomyosarcoma and on extensive search we found only one case of a botryoid rhabdomyosarcoma in a child of 2 years.
葡萄状胚胎型横纹肌肉瘤原发于肠系膜罕见，大量的研究仅发现一例二岁孩子罹患葡萄状胚胎型横纹肌肉瘤 。
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