| 释义 |
pack·ing
\ˈpakiŋ, -kēŋ\ noun
(-s)
Etymology: Middle English pakking, from gerund of pakken to pack — more at pack
1.
a. : the act or process of preparing goods for shipment or storage
< planned the trip and had the car serviced but left the packing to his wife >
< packing … begins when these slabs of curd can be sliced into blocks — L.L.Van Slyke & W.V.Price >
specifically : the wholesale processing of food for market
< the first American to give his whole time to the business of packing — Story of Meat >
b. : a method of inserting into a shipping container with appropriate protective covering, cushioning, or bracing
< typical compression packing: twelve one-quart bottles … each wrapped in cushioning material and separated by dividers within the shipping box — Export Packing >
c. : the act or process of transporting or being transported on the backs of men or animals
< the camp is inaccessible by road and packing is the only way to bring in supplies >
d. : the therapeutic application of a pack
< hemorrhage … could not be controlled by suture or packing — Journal American Medical Association >
e. : an act or instance of assembling in a compact group or mass
< packing of runners in a race >
2.
a. : a covering, stuffing, or holding apparatus used to protect, cushion, or brace goods packed for shipment or storage
< excelsior, paper wadding, partitions, chipboard boxes or other types of suitable interior packing — Export Packing >
b.
(1) : a thin layer or ring of elastic material (as paper, rubber, asbestos, copper) inserted between the surfaces of a flange joint to make it impervious to leakage — compare gasket
(2) : the material in a stuffing box which prevents leakage
(3) : a flexible ring surrounding a piston to maintain a tight fit (as inside a cylinder)
(4) : material (as felt, wool, or rope) placed in the sawway of a circular saw to prevent vibration — compare hydraulic packing, steam packing
(5) : caulking
c. : a masonry filling (as mortar containing small stones)
d. : the material used beneath the drawsheet of a printing press
e.
(1) : longitudinal timbers between the hull of a ship and the sliding ways of a launching cradle
(2) : a liner between the frame and a raised strake of plating on a ship to make it watertight
f. : the arrangement of several structural members (as I bars or struts) on a single pin forming a truss joint
g. : the filling of a fractionating column consisting usually of loose pieces of solid material (as glass beads or Raschig rings) |