This is really useful when very long field names (such as those used with SAP) are in use.
当使用非常长的字段名称（例如SAP 所使用的那些字段名称）时，这的确很有用。
The exception is for long field and large object data in "dirty" table Spaces, which are always backed up.
不过有一个例外，对于“脏(dirty)”表空间中的long型字段和大型对象数据，总是需要进行备份。
For large objects and long field data, DB2 escalates Intent None (IN) locks to Share (S) locks and therefore is approximately 10% slower.
对于大型对象和long字段数据，DB2 将IntentNone (IN)锁升级为Share (S) 锁，因而要慢大约 10%。
The data, index, long field, and LOB portions of a table can be stored in the same tablespace, or can be individually broken out into separate tablespaces for performance reasons.
一个表中的数据、索引、long字段和LOB部分可以存储在相同的表空间中，也可以分别放到不同的表空间中，以提高性能。
A long field running of the medium-frequency power supply shows that the control system presented in this paper greatly improves its stability and quality.
长期的现场运行表明，这一控制系统大大提高了电源的可靠性及中频电源产品质量。
A long field running of the medium-frequency power supply shows that the control system presented in this paper greatly improves its stability and quality.
长期的现场运行表明，这一控制系统大大提高了电源的可靠性及中频电源产品质量。
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