青云翻译

So their brains, combined with the knowledge learned, repeated testing. Hard work pays off, eventually succeeded in developing a new product out --- no smoke wok, and obtained a utility model patent

So spend the combined knowledge, repeated experiments. Hard work pays off, eventually successfully developed a new product---without soot wok, and obtain a utility model patent

Therefore racks brains, to unify the knowledge which studies, performs the experiment repeatedly.The time does not lose the person with high aspirations, finally succeeds develops a section new product---The non-lampblack wok, and has obtained the practical new patent

Then he racked his brains, in combination with the knowledge acquired, repeated experiments. Hard work pays off, and ultimately successful developed a new product - no grease pans, and has obtained a Patent for Utility Models

So spend the combined knowledge, repeated experiments. Hard work pays off, eventually successfully developed a new product---without soot wok, and obtain a utility model patent