lower sub meaning in English

下接头

In between the different levels are intermediary areas or buffer zones , sometimes called lower sub planes
在不同的层次之间是中间区域或缓冲区域，有时称作较低的亚层。
Study on sedimentary simulation of fan delta in lower sub - member es3 of baimiao gas field in puyang depression
濮阳凹陷白庙气田沙河街组三段下亚段扇三角洲沉积模拟研究
The sequence represents the lower sub - member of member of shahejie formation , characterized by lowstand system tracts undeveloped , only lacustrine transgressionsystem tracts and highstand system tracts developed
层序代表的是沙三段下亚段沉积，低位体系域不发育，只发育湖侵体系域和高水位体系域。
Digital beam forming ( dbf ) is a kind of new technique which based on the antenna beam forming and the well - developed digit signal processing . the technique should convenient obtains high resolution and low sub beam by sufficiently utilizing of the space message received by array antenna . and make the technology of beam scanning , self - calibrating and adaptive beam should be realized easily
数字波束形成( dbf )是在天线波束形成的基础上，引入先进的数字信号处理方法后建立起来的一门新技术，这种技术可以充分利用阵列天线检测到的空间信息，并易于获得超分辨率和低副瓣，实现波束扫描，自校准和自适应波束形成等。