DZ型外注式单体液压支柱 ,是煤矿普遍使用的液压支护设备。
DZ type outside-pourable monomer hydraulic supports are hydraulic timbering facilities used in coal mine at large.
DZ型外注式单体液压支柱 ,是煤矿普遍使用的液压支护设备。
DZ type outside-pourable monomer hydraulic supports are hydraulic timbering facilities used in coal mine at large.
"Tudor style : Architectural style in England (1485-1558) that made lavish use of half-timbering (see timber framing), as well as oriels, gables, decorative Brickwork, and rich plasterwork."
都铎格:英国格,大量应用木构造以及、山头、装饰性的砖墙和富丽的石膏粉。
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