system_change_number_有道手机词典

1.Usually media failure is caused by either the complete loss of a data file or a system change number (SCN) time stamp being out of sync with the rest of the database.
通常媒体故障是由于数据文件完全丢失或系统更改编号（System Change Number，SCN）时间戳与数据库的其余部分不同步造成的。
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2.It's a closed system, so the number moles doesn't change.
这是一个封闭系统，因此摩尔量不会改变。
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3.If you decide to change them, you must make sure that the port number you selected is not being used by any other application on the system.
如果决定更改端口，则必须确保系统上的任何其他应用程序不在使用所选的端口号。
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