Electric resistance welding . pneumatic cylinders without liners for multiple spot welding machines . general specifications 电阻焊接.多点点焊机用无外壳千斤顶.通用规范
The only exceptions are the outdoor setting , where the hemi light fakes the light cast by the sky , and the area light , where multiple spots fake a light source of finite extension 唯一的例外时室外设置,此时使用半光模拟来自天空的光线和区域灯光(使用多盏聚光灯模拟来自无限远处的光源) 。