mumbo jumbo

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OK — enough about the background and technical mumbo jumbo of the classification trees.
好了，对于分类树的背景和技术方面的介绍已经够多了。
When he's dressed he goes to the cupboard, kneels before a little idol on the third shelf, and repeats the mumbo jumbo.
穿好衣服后他便走到碗橱前，跪在摆在第三层上的一个小神像前，一遍遍背诵那些别人听不懂的祷告词。
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After all, much of what we have inherited from past civilisations is of little practical use: the Venus Tablet of Ammisaduqa, for instance, consists largely of astrological mumbo jumbo.
毕竟，人类从过去的文明中所继承下来的都是些缺少实用价值的知识，例如阿米萨杜卡金星文书中大部分都由一些占星术组成的。

The CBO estimates are available in very readable English—not the government mumbo jumbo techno-speak you might expect.
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Technical analysts climbed aboard and ranted their mumbo jumbo about moving average breakdowns, Fibonacci retracements, waves and cycles and on and on.
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No obfuscation, no weasel words, no mumbo jumbo and gobbledygook, no pandering to the Establishment—just the truth, the plain truth and nothing but the truth.
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words or activities that seem complicated or mysterious but have no real meaning

If you describe ideas or words, especially religious or technical ones, as mumbo jumbo, you mean that they are nonsense.