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

Q: The high relative weight of pre-stressed concrete for example, might not be a major disadvantage.

A: Uthelekiso oluphezulu lobunzima obomelezwe ngokucinezelwa okuqinileyo umzekelo ingangabisiso isithintelo esingako
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Q: Has two notes, high and low, both of which can be "trilled."

A: Ineenowuthi ezimbini ephantsi nephezulu zombini zisenokwugcangcazeliswa.
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Q: In optics, means "without aberration." Used when spherical and chromatic aberrations have been eliminated.

A:
Kwinzululwazi zokhanyo ithetha ngaphandle kophambuko isetyenziswa xa uxinzelelo kunye namabala ophambuko esusiwe
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