24:30; and so it passed into the Hebrew language, ×¤Ö·Ö¼×¨Ö°×ÖµÖ¼×¡, Nehemiah 2:8; Ecclesiastes 2:5; Song of Solomon 4:13; besides in the Sept. mostly for ×Ö·Ö¼×; thus, for that delightful region, 'the garden of Eden,' in which our first parents dwelt before the fall: Genesis 2:8 ff; 3:1ff.
Abrasive Lapping Powder & Polishing Powder Description a) Lapping is a machining operation, in which two surfaces are rubbed together with a fine abrasive between them, by hand movement or by way of a machine. b) This can take two forms. The first type of lapping (traditionally called grinding), typically involves rubbing a brittle material such as glass against a surface such as iron or glass itself (also known as the lap or grinding tool) with an abrasive such as aluminum oxide, emery, silicon carbide, diamond, etc., in between them.
There are four factors to consider when selecting any coated abrasive: the abrasive mineral, or which type of rough material; the grade, or the coarseness or fineness of the mineral; the backing (paper or cloth); and the coating, or the nature and extent of the mineral on the surface.aper backing for coated abrasives comes in four weights: A, C, D, and E. A (also referred to as Finishing) is the lightest weight and is designed for light sanding work. C and D (also called Cabinet) are for heavier work, while E is for the toughest jobs. The coating can be either open or closed.