The common name of H2O is water, its systematic name is dihydrogen oxide.
H 2 O的俗名是水，其系统命名是氧化二氢。
These advantages make the systematic name far superior to the common name when absolute clarity and precision are required.
当需要绝对的清晰度和精度要求时，这些优势使系统名称远远优于普通的名字。
These advantages make the systematic name far superior to the common name when absolute clarity and precision are required.
当需要绝对的清晰度和精度要求时，这些优势使系统名称远远优于普通的名字。
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