| lagging |
A way to determine who shoots first. Each player puts a ball behind the head string and banks it off the foot rail. The player whose ball stops closer to the head rail has choice of shooting first or second. (Stringing" in the UK)
출처: billiardsroom.com/ecom.asp
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| lagging |
A material applied to the outer surface of pulleys or rollers.
출처: www.unitelegypt.com/Technical/glossary-gl.htm
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| lagging |
Boards placed side-by-side to retain the face of an excavation. Held in place by soldier piles. Line : A description of the location and grade of a tunnel. Lining : Materials used to finish the inside surface of the tunnel. The initial supports and preliminary liner are placed as the tunnel is being excavated. These help stabilize the interior surface. Shotcrete may be sprayed on as a preliminary liner. ...
출처: www.promat-tunnel.com/idprt067.htm
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