| 单词 | main beam |
| 释义 | > as lemmasmain beam main beam n. (a) Building a principal beam which transmits a load directly to a column or wall (in quot. a1657 with reference to a ship); (b) British the undipped beam of the headlights of a motor vehicle (North American and Australian use high beam). ΘΚΠ society > inhabiting and dwelling > inhabited place > a building > parts of building > framework of building > [noun] > joist > support for raisingeOE raising-piece1286 summer1324 reasonc1330 rib-reasonc1350 wall-plate1394 wall-plat1420 summer-piecec1429 summer-tree1452 resourc1493 summer beam1519 wall-rase1523 girt1579 bridle1587 girder1611 out-footing1611 sommier1623 raising plate1637 trimmer1654 main beama1657 corbel1679 dwarf1718 brick trimmer1774 summer stonea1782 tail-trimmer1823 wood brick1842 society > travel > means of travel > a conveyance > vehicle > powered vehicle > parts and equipment of motor vehicles > [noun] > headlight > main beam brights1920 high beam1932 full beam1934 main beam1964 a1657 W. Bradford Of Plimouth Plantation (1901) ix. 92 For the buckling of ye maine beame, ther was a great iron scrue..which would raise ye beame into his place. 1663 B. Gerbier Counsel to Builders ii. 43 To see the Carpenters to cock the main Beams into the Lentals, to hold the wall the better. 1885 N.E.D. at Architrave The lowest division of the entablature, consisting of the main beam that rests immediately upon the abacus on the capital of a column. 1964 Which? Apr. 47/2 Our drivers particularly liked the headlamps of the BMC Bluebird and Commer on main beam and also found their dipped beam better than the other caravans. 1988 Pract. Motorist Jan. 74/2 Oncoming drivers, who retaliate by ‘flashing’ their main beams. 1988 R. McMullan Macmillan Dict. Building Main beam, a beam that transfers its load on to a wall or column, rather than to another beam. < as lemmas |
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