What does "相兼岂" mean in this sentence from a Taiji Quan manual? The following sentence is from a short passage about &quot;体用“ （utilizing/controlling the body) in the context of the 13 Forms of Taiji Quan:
&quot;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.&quot;
My current translation is as follows: &quot;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)?&quot;
I feel like I don't fully understand &quot;相兼岂&quot; in the sentence: could anyone confirm their meaning?
the chopping of the verse is, . . . incorrect lah 
the “體用歌”

太極拳。十三式。妙在二氣分陰陽。化生千億歸抱一。歸抱一。太極拳。兩儀四象渾無邊。禦風何似頂頭懸。我有一轉語。今為知者吐。湧泉無根腰無主。力學垂死終無補。體用相兼豈有他。浩然氣能行乎手。掤捋擠按採捩肘靠。進退顧盼定。不化自化走自走。足欲向前先挫後。身似行雲。打手安用手。渾身是手手非手。但須方寸隨時守所守。

roughly, “體” means “noumenon“ (本體); “用” means “usage” (使用)
so, the verse “體用相兼豈有他” should be interpreted as:
the noumenon (體) &amp; usage (用), both (相) [should be] taken care of (兼 -&gt; 兼顧); there’s no other way (豈有他)
have fun :)