As a project grows, typically the branchstructure also grows and becomes more complex.
通常情况下，随著专案变大，分支结构也会放大并变得更加复杂。
2
Fieldbus intelligent field devices are connected and digital automation system, two-way transmission, multi-branchstructure of the communications network, based on smart meters.
The basic principles and simulation methods of a null-coupler-based OADM are studied firstly, especially in the crosstalk of a Y-branchstructure and the coupling properties of a tilted grating.