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2021
|
Invention
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Underground space quality evaluation and visualized presentation method and system. An undergroun... |
|
|
Invention
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Linear sensor-based structure monitoring method and system. A linear sensor (10, 11, 12, 14, 15)-... |
|
|
Invention
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Jet grouting pipe curtain supporting method and system by using large-span short-distance undergr... |
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2019
|
Invention
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Vibration reduction section prefabricated ballastless track structure having longitudinal connect... |
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|
Invention
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Assemblable ballastless track structure, and longitudinal connection structure thereof and assemb... |
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2018
|
G/S
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Upholstery repair; heating equipment installation and
repair; installation and maintenance of me... |
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G/S
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Upholstery repair; Heating equipment installation and repair; Installation and maintenance of med... |
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2017
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G/S
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Repair of upholstery fabrics; heating equipment installation and repair; installation and mainten... |
