正如我们所见，被切割成凸镜状蓝宝石会在阳光直射下呈现出一个六角星。
As seen here, some sapphires, when cut to a convex shape, exhibit a striking six-pointed star in direct sunlight.
施工机具到位：挖掘机、吊车、焊机、角向磨光机、砂轮切割机及其它工用具。
Construction equipment in place: excavator, crane, welding machine, Angle grinder, abrasive cut-off machine and any other equipment.
电熔焊机、对接型热熔机、角磨机、电焊机、切割机、水平尺。
Electric welding machine, butt-type hot-melt machine, angle grinder, welding machine, cutting machine, horizontal ruler.
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