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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 2. Отображено 2.
22-08-2023 дата публикации

Assessment device for management science and engineering teaching

Номер: CN116624716A
Автор: LIU JUNJUAN, YAN PEILING
Принадлежит:

The invention discloses an assessment device for management science and engineering teaching, and relates to the technical field of teaching assessment, the assessment device comprises an outer fixing cover, the inner part of the outer fixing cover is fixedly connected with a fixing column, the top end of the fixing column is provided with a plurality of vertical rods, the plurality of vertical rods are connected in sequence, and the top end of the uppermost vertical rod is fixedly connected with a top disc. The top end of the top tray is rotationally connected with a monitor; by arranging the vertical rods which can be connected for multiple times, the monitor can be placed at a higher position, the height of the monitor can be changed according to use requirements, examination and monitoring are facilitated, and the multiple vertical rods can be separately placed after being detached, so that the device has the characteristics of being convenient to move and carry; through the arrangement ...

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Номер записи: 1
30-06-2023 дата публикации

Hydraulic support hoisting, assembling and disassembling device for coal mine

Номер: CN116354267A
Автор: LI HONGTAO, DAI TIEJUN, HAO MING, WANG YONGFA, SUN GUANGLUN, CHANG LEI, ZHANG YONGBO, LI WEIDONG, LIU JUNJUAN, WU TINGHAO, XIAO JINJIN, ZHANG SHIHAI, SUN HAIWEI, WANG GUOWEN, ZHANG DONGLAI, WANG WENJUN, ZHANG YUANBO, LI ZHANJUN, ZHAO HAITAO, LI HAODA
Принадлежит:

The invention discloses a hydraulic support hoisting, assembling and disassembling device for a coal mine, and mainly relates to the field of underground coal mining. Comprising a plurality of lifting assemblies sequentially arranged along a track, each lifting assembly comprises two lifting units, one lifting unit is located on the left side of the track, the other lifting unit is located on the right side of the track, the two lifting units are symmetrically arranged, and each lifting unit comprises a supporting body; the top end of the supporting main body is fixed on a roadway top plate, the bottom end of the supporting main body is fixed on a roadway bottom plate, the supporting main body is provided with a cargo boom extending to the track direction, the height of the cargo boom is adjustable, and the supporting main body is provided with a hydraulic lifting system used for adjusting the height of the cargo boom; the hydraulic support can be safely, simply and rapidly assembled and ...

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Номер записи: 2