p. 284
न पृथिव्यां तिष्ठति नान्तरिक्षे नैतत्समुद्रे सलिलं बिभर्ति ॥ २० ॥
In plain words
It does not stand on the earth. Not in the open air above. And the water of the ocean does not hold it up either.
Close to the Sanskrit
It does not stand on the earth, nor in the mid-space; the water in the ocean does not bear this.