On July 2nd, the reporter learned from the Dong'e E-Jiao Scientific and Technological Achievem ......
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“Being scarce and expensiveâ€, behind the timber price hike is the scarcity of tree spe ......
The design steps of the mold template are as follows: A. Analyze and understand the design intent, ......
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When the watermelon has eggs, be sure to keep the fertilizer water up. When the watermelon is s ......
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According to historical records, as early as 4,000 years ago, the tribe of Emperor Yan of the Yan ......
Precision plastic forming is one of the main contents of advanced manufacturing technology, and it i ......