Designation: A 709/A 709M –04 Standard Speci?cation for Carbon and High-Strength Low-Alloy Structural Steel Shapes, Plates, and Bars and Quenched-and-Tempered Alloy Structural Steel Plates for Bridges 1 This standard is issuedunder the ?xed designation A 709/A 709M; the number immediately following the designation indicates the year of original adoption or, in the caseof revision, the year of last

为满足不同用户的需求，CREATOR公司近日推出一款与ST-6500C无线触摸屏配套使用的多功能可编程中央控制系统主机PC-8000。两者配合使用，不仅性能更稳定，功能更强大，同时也很经济实惠。 PC-8000采用1U的机箱设计。前板提供1个传声器接口及USB接口，用于传声器输入及程序下载。PC-8000内置1个VGA3×1矩阵与1个AV6×2矩阵，能实现多路音频信号的切换，呈现完美的音／视频效果；