primitive technology
primitive technologyprimitive technology
1
But as it turns out, the primitive technology inside the Hunley holds some clues to what led to its eventual fate.
但最后亨利号内的原始技术提供了一些是什么导致了其最终命运的线索。
2
China burns more coal than the U. S. , Europe and Japan combined, often using very primitive technology.
中国燃烧的煤比美国，欧洲和日本的总和还要多，但通常使用非常原始的技术。