variable-length fields造句

例句与造句

1. For each non - null variable - length field , the record header contains the length of the column in one or two bytes
   对于每个非空的变长字段，记录头使用一或两个字节包含了列的长度。
2. It's difficult to find variable-length fields in a sentence. 用variable-length fields造句挺难的