机枪在黑暗中吐出一道凶厉的白光,活象一支喷火的乙炔吹管.In the darkness, the machine gun spat a vindictive white light like an acetylene torch.同时介绍了该锅炉的吹管工艺特点.At the same time, the features of pipe blowing technology for the.在使用乙炔设备之前,总是用肥皂水检查所有的调整...
They will be concerned to cut back expenditure on unnecessary items.他们将会考虑削减不必要的开销。Water allotments to farmers were cut back in the drought.在干旱时期配给农民的水量减少。Overgrown deciduous shrubs can be cut back at this time of year.过...