| 释义 |
▪ I. transect, v.|trɑːnˈsɛkt, træn-|
Also 9 transsect.
[f. trans- + sect-, ppl. stem of L. secāre to cut: see sect v.2]
trans. To cut across; to divide by passing across; in Anat. to dissect transversely. Hence tranˈsected ppl. a.
1634Sir T. Herbert Trav. 161 Who with a Sword of a hundred Cubits length, cut off at one blow ten thousand Christians heads, and transected Taurus. 1846Dana Zooph. (1848) 711 The concentric layers in these transsected knobs. 1861E. T. Holland Iceland in Peaks, Passes, etc. Ser. ii. I. 8 The plain of Thing-vellir..is transected by numerous longitudinal crevasses in the lava. 1888Amer. Jrnl. Psychol. May 488 The transsected sheaths of the tubules. 1890O. Crawfurd Round Calendar in Port. 178 The river Douro that transects the northern provinces of Portugal from east to west.
So transection |trɑːnˈsɛkʃən, træn-| [cf. section], the action of transecting; a transverse section.
1899Allbutt's Syst. Med. VI. 518 Transection of the spinal cord above the lumbar enlargement depresses the knee-jerk for a time.
▪ II. transect, n.|ˈtrɑːnsɛkt, ˈtræn-|
[f. the vb.]
a. A line or a belt of land along which a survey is made of the plant or animal life or some other feature; a survey of this kind.
1905F. E. Clements Research Methods Ecol. iv. 176 When longer transects are desired, as in the case of forest formations, tapes of 500 or 1,000 meters should be used with eyelets a meter apart. 1939[see quadrat 3]. 1974Environmental Conservation I. 57/2 A second transect in an area of high-centred polygons..exhibited less than 2% differences in total thaw by season's end. 1979Rescue News Dec. 4/2 A transect was plotted from the highest corner of the field to the source of the Gypsey Race. Along this over 20 one-metre square trial holes were dug.
b. attrib., as transect count, transect line, transect strip.
1971Country Life 23 Sept. 739/1 The puffin study, involving transect counts of occupied burrows on the island's vertiginous slopes, had been hazardous. 1973J. J. McKelvey Man against Tsetse iii. 175 Certain rounds were arranged to follow transect lines according to compass bearings.
1953Scott & Fisher Thousand Geese 220 It was not possible to maintain a constant width of transect-strip. |