三角牙螺丝 TRILOBULAR THREAD SCREWS ; TRIANGULAR SCREWS THREAD ; Thread Rolling Self-Tapping Screws ; Self-Tapping Screw-Thread Rolling
不锈钢三角牙螺丝 STAINLESS STEEL TRI-LOBULAR THREAD SCREWS ; STAINLESS STEEL TRIANGULAR SCREW THREAD
外六角三角牙螺钉 hexagon head triangular screw
三角牙树脂拉链 Triangle teeth zipper
三角牙螺晋 TRIANGULAR SCREWS THREAD
不珙三角牙螺晋 STAINLESS STEEL TRIANGULAR SCREW THREAD
十字槽伞头三角牙螺钉 Cross recessed truss head triangular screw
十字槽沉头三角牙螺钉 Cross recessed countersunk head triangular screw
三角机牙螺丝 Taptite-S Type
三叉牙副单角鲀 Paramonacanthus tricuspis
满口的三角牙证明皱鳃鲨是凶猛的捕食者，但科学家认为它不会攻击人类。
With a mouthful of three-pointed teeth, the frilled shark may be a fearsome hunter, but it's considered harmless to humans.
在螺纹材料、尺寸、载荷都相同的情况下，三角形螺纹牙所受的剪应力最小，断裂载荷也比梯形螺纹和矩形螺纹高。
In the same material, dimension and load circumstance, the cut stress of the triangle thread is smallest. Its rupture load is higher than the echelon and rectangle.
方法三棱滑切固定矫治器的结构，以三棱形弓丝和具有三角槽沟的托槽为主体，由它控制矫治牙在各个方向的移动而发挥矫治作用。
Methods the structure of deltoid arch wire fixed appliance is consist of deltoid arch wire and bracket with deltoid colpus. It is used to control the tooth's moving.
应用推荐