"as closely intertwined" is a correct and usable part of a sentence in written English.
You can use it to describe two or more things that are closely connected to or related to each other. For example, "The welfare of both countries are as closely intertwined as ever."
Especially, she pointed out, if you're doing something like Kundalini yoga, an intensely meditative form of stretching that many Americans closely associate with the Sikh religion -- though, for the record, many Sikhs would argue that their religion and yoga are not as closely intertwined as Westerners believe.
The US and UK human intelligence services (the CIA and MI6) do not run operations inside the other's country without permission, but while the CIA and MI6 do share information they are not nearly as closely intertwined as their counterparts GCHQ and NSA.
As someone with close ties to those still suffering inside Syria, I can speak to the extent to which a ceasefire and political transition are viewed as closely intertwined.
In all cases, employment and drinking history were described as closely intertwined.
At this point, the two carmakers seem to have no other option but to work together, whether as one company or as two closely intertwined.
As fertility is closely intertwined with level of education, I compute completed fertility by either age interval 35 39 or 40 44 and by education.
Asymmetric shocks may become rarer as economies become more closely intertwined.
As ecosystem functioning is closely intertwined with biodiversity, the impact of such extinction rates are even more dreadful.
The scientific and academic communities, along with a U.S. federal court, view intelligent design as either a form of creationism or as a direct descendant that is closely intertwined with traditional creationism; and several authors explicitly refer to it as "intelligent design creationism".
Understanding the current regulation regarding stem cells involves a discussion of their safety profile, as the 2 issues are closely intertwined.
As several agricultural and industrial activities are closely intertwined with water consumption, the availability of sufficient freshwater resources constitutes a significant precondition for covering global consumer needs.
