短语词组短語sheathing test -piece 護套試樣test -piece thickness 試件厚度fluidity test bar piece 流動性直棒形試片;流動性直棒形試片英語wedge test -piece 三角試塊fuse arming test experiment piece 條形保險絲Refractory test -piece preparation 耐火試樣制備 返回 test piece