The following sentence is from a short passage about "体用“ (utilizing/controlling the body) in the context of the 13 Forms of Taiji Quan:
"体用相兼岂有他浩然气能行乎手。掤捋按採挒肘靠進退顾盼定."
My current translation is as follows: "How else besides through control of the body can one have his vast amount of while being able to use the proper push-hands technique (Warding off, shifting, pressing, pushing, plucking, splitting, leaning, advancing and retreating, left, right, center)?"
I feel like I don't fully understand "相兼岂" in the sentence: could anyone confirm their meaning?