translation.en: He has produced some power generators, which we are now doing an experiment in Bangladesh, in two villages where cow manure is producing biogas, which is running these generators.
translation.zh: 他制造了一些发电机， 我们正在孟加拉的两个村庄对其进行一项试验， 利用牛粪产生的沼气 为发电机提供动力。