If the formal preparation of a Letter has become so much easier than 50 or 40 years ago, doing the hardware of physics—that is, getting the data—has become a much more complex and competitive affair.

现在完成一篇文章远比比四，五十年前容易得多。 彼时万事不易，举例来说，搜寻所需的数据是一件非常繁杂的事情，以现在的硬件条件都不容易，何况彼时。

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