中国北车是目前国内唯一一家能够批量生产该速度等级动车组的企业。
The manufacturer, CNR Tangshan Railway Vehicle Co Ltd, is the only qualified producer of trains of China Railway High-Speed (CRH) Series and can produce 6 such trains per month.
是国内唯一一家拥有整套生产工艺和生产设备的光学薄膜和光学玻璃供应商。
It is only one of optical films and glass suppliers which has the whole set processing technology and producing equipment in our country.
使得产品在国内形成强大的销售网络，是国内唯一一家销售、安装服务一条龙的企业。
Products made in China to form a strong sales network, is the only company selling, installing one-stop service enterprises.
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