English to Chinese Bus/Financial Finance (general)

As discussed below, it is important to note that the line between activity ultimately subject to the corporate tax or individual tax is blurred because some flow-through businesses, primarily partnerships and limited liability companies, can have corporate owners. Also note that the 82 percent of net income reported by all flow-through entities is for 2008, whereas the 54 percent of net income reported by individual owners of flow-through entities is the average from 2004 through 2008.
8 Limited partnerships, which offer limited liability to the limited partners, along with flow-through treatment, were available.
9 In 1988 the IRS issued a revenue ruling indicating that it would treat LLCs established under Wyoming state law as partnerships for tax purposes. Other states subsequently enacted similar LLCs statutes.


请问这里的flow-through treatment应如何理解？