through repeated experimental investigation
... 通过实验室研究 By Laboratory Studies 通过反复实验研究 Through Repeated Experimental Investigation 通过大量实验研究 Through Massive Experimental Study ...
基于8个网页-相关网页
through repeated experimental investigation
通过反复的实验研究
以上为机器翻译结果，长、整句建议使用 人工翻译 。