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.

Nokuba ayinamsebenzi ngaphandle kokuba ilele kakuhle phambili.
However, it is useless unless led well forward.

Ibhombu eyenzelwe ukuqhuba kuphela xa iimpembelelo ezimbini okanye ngaphezulu ezahlukileyo zamkelwe ngokulandelelana okanye ngendlela emisiweyo
Mine designed to actuate only when two or more different influences are received simultaneously or in a pre-determined order

Olu lwazi lungeziwayo leza nentloko yoku qalisa nokumiswa kwenqanawa.
These additional data come under the heading of Starting and Stopping Trials.