Hitherto the researches about technology science are not systemic and in-depth, and the accessory dissertation is more.
迄今，中外学者已对技术科学做了不少的研究，但都不够系统、深入，属于附带性论述居多。
Hitherto the researches about technology science are not systemic and in-depth, and the accessory dissertation is more.
迄今，中外学者已对技术科学做了不少的研究，但都不够系统、深入，属于附带性论述居多。
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