Resemblance Inclusions Rare Silicates Crystallography Similar Regarded Compelling

意群训练： It is not known how rare this resemblance is , or whether it is most often seen in inclusions of silicates such as garnet , whose crystallography is generall y somewhat similar to that of diamond ; but when present , the resemblance is regarded as compelling evidence that the diamonds and inclusion s are truly cogenetic .

标志： It is not known how rare this resemblance is, or whether it is most often seen in inclusions of silicates such as garnet, ( whose crystallography is generally somewhat similar to that of diamond; ) but / when it is present, / the resemblance is regarded /as compelling evidence (that the diamonds and inclusions are truly cogenetic)/.

译文： 现在还不知道 这种相似稀少到什么 程度，也 不知道它是否 最常见于像g（石榴石）那样的硅酸岩的内含物（杂质）中；（ g的 晶体结构通常有点类似于钻石的结构 ）；但是 当 这种类似 出现的时候，这种类似 就被视/为 （钻石和内含物确实同源的）有力证据。/

解释： 本句的句子既长，专有名词又多，从句层出不穷，故而难读。在本句中出现的专有名词中，除了silicates（硅酸盐）这个单词常常出现于理科文章中，需要记忆之外，其他单词阅读现场简单处理一番即可：inclusions可以猜出是被包含的物质；garnet作首字母提炼叫g；crystallography只要能从词头推出这个单词与晶体有关即可。

另外，这篇文章的结构极为特殊，请读者注意阅读时不可不看内容而全凭套路感。