central screw造句

• The radial cutting edges remove a slice of wood of thickness equal to the pitch of the central screw for each rotation of the bit.
• The central screw tends to pull out, or to split the wood along the grain, and the radial edges have trouble cutting through the long wood fibers.
• Though there is little or no evidence of its being used by bandits, there are a number of examples of ornate and elaborate, pear-shaped devices with three or four leaves or lobes, driven by turning a key that rotates the central screw thread, which spreads the leaves.
• The posts concealed the lift mechanism, and Bartola's four-post lift was of great interest to small to mid-sized theater builders because it sat flat on the orchestra pit floor without requiring excavation below the pit, or even the drilling of a central screw shaft into the floor.
• I realize this is rather a long shot, but does anyone happen to know where I might find the dimensions of the central screw hole arrangement of this type of monitor mounting plate ( i . e ., the spacing of the four screw holes in a cross arrangement around the central hole )?