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[ China Agricultural Machinery Industry News ] According to the Central …
On July 16th, the author was informed that China Railway Sec…
Most of the mine maps are horizontal projections. The general steps for manually drawing su…
High-voltage switch dynamic characteristics tester is a special instrument developed to meet …
Recently, the second batch of two 450-ton linear winches produced by Zhenhua Nantong Transmissi…
In the prevention experiment, it was found that the leakage current of phase A was too large …
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On July 15th, 2017, Long Jun Lubricant Shi Junfeng…
The sensitivity of the liquid level sensor refers to the ratio of the chang…