Please make the changes only if no-one has modified the record since I read it.
请仅在从我读取该记录后没有人进行修改的情况下进行更改。
Small or non-anti-aliased text is most difficult to read with modified letter spacing.
小而无抗锯齿的字体如果没有适当的字符间距，将更加难以阅读。
Existing data is read entirely automatically but is not modified.
现有数据完全自动读取，但不会修改。
In the case of specific heat, however, data can be read but cannot be modified.
对于指定的的热量的数据是只能读不能改的。
In the case of specific heat, however, data can be read but cannot be modified.
对于指定的的热量的数据是只能读不能改的。
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