文档介绍：ligger
lift gate A gate that opens by moving in a verti-
cal direction, in contrast to one that swings
about hinges along one edge.
lift hole A small hole in a pipe or pipe section
which is used to insert a device for handling
the pipe.
lifting, raising In paints, the softening and
swelling of a film of old dry paint when a new
topcoat is applied over it.
lifting beam Same as strongback.
lifting pin A lewis.
lift joint The joint formed between two es-
sive lifts, 5.
lift latch, thumb latch A type of door latch
which fastens a door by means of a pivoted bar
that engages a hook on the doorjamb; a lever
which lifts the pivoted bar is used to unfasten
the door. Also see Norfolk latch, Suffolk latch,
thumb latch.
lierne ribs
life cycle cost The cost of a building or equip-
ment (or the like) based not only on the initial
expenditure, but also on its maintenance and
operating costs over its entire lifetime. lift latch
life performance curve For a source of light,
a curve showing the variation of some character- lift-off butt hinge A special type of butt hinge
istic of the source throughout its lifetime (., which has a pin permitting the door to be raised
lumens vs. life). off the hinge.
lift shaft Same as elevator hoistway. lift-off hinge See loose-joint hinge.
lift 1. An elevator used on the stage of a the- lift platform Same as elevator car platform.
ater, in the orchestra pit, or on the apron.
lift shaft See hoistway.
2. British term for elevator. 3. A handle or pro-
jection from the lower sash in a hung window, lift slab 1. A method of concrete building con-
used as a grip in raising the sash; also called a struction in which floor (and roof) slabs are cast,
sash lift. 4. One of a number of frames of scaf- usually at ground level, and then raised into
folding erected one above another in a vertical position by jacking. 2. A slab which is po-
direction. 5. The concrete placed between two nent