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。
The fuel consumption standards in plough and revise coefficients of working conditions of a tractor, field length, field slope and field surface condition were worked out.
制订了犁耕油耗标准，确定了相应的发动机技术状况修正系数、作业区长修正系数、地表修正系数和坡度修正系数。
The fuel consumption standards in plough and revise coefficients of working conditions of a tractor, field length, field slope and field surface condition were worked out.
制订了犁耕油耗标准，确定了相应的发动机技术状况修正系数、作业区长修正系数、地表修正系数和坡度修正系数。
应用推荐