| 单词 |
preselective |
| 释义 |
preseˈlective, a.
[pre- A. 3.]
That preselects or permits preselection.
1925Jrnl. Inst. Electr. Engin. LXIII. 660/2 If there are switches with a large number of outlets the problem does not arise; neither would it arise if one could use pre⁓selecting outgoing secondary switches, i.e. switches which themselves found the line before it was wanted... Such a circuit will no doubt arrive and, when it does, outgoing switches of a pre-selective type will for 10-point switches..completely sweep the board. 1930Engineering 17 Oct. 498/3 The pre-selective device consists of an arrangement whereby the gear-control lever can be set for any gear, but the selected gear will not actually be engaged until a pedal is depressed. 1941J. S. Huxley Uniqueness of Man ii. 54 Pre-selective influences are those which attract certain types into an environment and discourage others. 1955Times 16 Aug. 2/6 The Conquest Century has the characteristic Daimler transmission, which comprises a fluid flywheel and a preselective epi-cyclic gearbox. 1971B. Scharf Engin. & its Lang. xvi. 234 More sophisticated overhead chain conveyors are provided with a mechanism by means of which any one of a number of discharge points can be preselected at any loading station. The material will then be automatically discharged or moved on to a side line... These conveyors are termed preselective overhead chain conveyors. |
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