upper level

基本解释

Business Entities also surface at the upper level as entities exchanged between Business Process Realizations.
业务实体同样在一个更高层次上作为实体在业务处理实现之间被交换。
The upper level of the SCSI subsystem represents the highest-level interface from the kernel (the device level).
SCSI 子系统的较高层代表的是内核（设备级）最高级别的接口。
At the top is what's called the upper level, which represents the highest interface of the kernel for SCSI and drivers for the major device types.
顶部的那层叫做较高层，代表的是内核针对 SCSI 和主要设备类型的驱动器的最高接口。

"Everything from basic language skills of agreement of subject and verb, use of commas and other punctuation, complete and incomplete sentences, so that we can move from basic writing/language skills to the more sophisticated skills that graduate students, upper level undergraduates and people in the work world use."
The upper level winds are still transporting that down towards the U.K.and northwest Europe.
"I think we're going to get the upper level winds carrying that ash down for a few more days yet until the upper wind patterns change which will probably not happen until the time frame Thursday-Saturday.

The upper level opens to the main patio, garden and pool with attached water slide.
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