"covering half of" is correct and usable in written English.
It is typically used to describe a situation where something is affecting or encompassing a certain portion or portion of something else. Example: The blanket was only covering half of my body, leaving my feet cold and exposed.
The soft tray (yellow) extends buccally to cover the entire bracket, holding it in place while covering half of the clinical crown on the lingual side.
The primary inpatient rehabilitation for patients with highly complex needs after TBI has been centralized to two hospitals since the year 2000: Glostrup Hospital, which covers the eastern part of Denmark, and Hammel Neurorehabilitation Centre and University Research Clinic, which covers the western part of Denmark, with each unit covering half of the country as uptake area.
Because the neighbour's extension is going to be up against the window, covering half of it.
In two decades APEC has not made much progress towards its goal of a free-trade area covering half of global commerce.
Greenland is poor and the size of the annual subsidy from Copenhagen, currently covering half of Greenland's budget, was frozen in 2009.
Dressed for a rockabilly funeral, in black with a mesh veil covering half of her face, Ms. Ortega looked as if she might never stop mourning.
SN and CM therefore had regular slots at clinics covering half the city of Glasgow.
We consider 2σ as the estimate of the uncertainty covering half-width of a 95% confidence interval of the normal distribution.
The anterior surface of the incisor is covered by smooth enamel that extends onto the lateral and medial surfaces, covering almost half of the lateral side and one-third of the medial side of the incisor.
The new plans will set Departmental Expenditure Limits (DELs), covering about half of public spending.
In the last two years, crystal structures of independent domains covering roughly half of the heterotrimeric polymerase have been determined.
