In this task, you are given a sentence or phrase in Xhosa. You must translate it to English in a way that is equivalent in terms of meaning and grammatically correct.

[EX Q]: Ngamadonga azo angqingqwa zimele ukusebenzisa kubunzulu bamanzi alungele umqhubi; kodwa kufuneka amandla amancinci ukugcina ukuseleko-moya.
[EX A]: With their fixed sidewalls they are restricted to operation in depths of water that are suitable for the propeller, but require much less energy to maintain the air cushion.

[EX Q]: Ukuba iimoto ezimbini ziphezulu kweplanga eliphezulu komnyango funeka kubekho noko ii-intshi ezingamashumi amambini phakathi kwazo (ukusuka kwisangqa uye kwesinye) ngapha koko uphazamiso olwenziwa ngabaqhubi abadibeneyo lungenelela ngamandla ngemfuneko yothabathekiso lomqhubi
[EX A]: If two motors are on the transom, there must be at least 20 inches distance between them (from centre to centre) otherwise the disturbance caused by the combined propeller turbulence interferes very considerably with efficiency of propeller grip.

[EX Q]: Xa u-ankila kwitheku elingaziwayo elinobunzulu obungabhalanga phantsi, umakhi sangqa ojinga-jingayo mayixilongwe kusetyenziswe inqanawa esebenzela enkulu kwakunye nesikhokeli sandla.
[EX A]:
Upon anchoring in an unknown bay whose depths are not charted, the swinging radius has to be sounded using the tender and a hand lead.