释义 |
gradient /ˈɡreɪdɪənt /noun1An inclined part of a road or railway; a slope: fail-safe brakes for use on steep gradients...- By following the ridge of the city's hills, it provides tolerable gradients and avoids steep inclines, which proliferate in the city's side streets.
- Road sections which included steep gradients, major drainage structures and thick chip seal surface layers were normally excluded.
- For traffic driving east, the road descends down a gradient of 0.023 through a wooded area with trees overhanging the road on both sides.
Synonyms slope, incline, hill, rise, rising ground, bank, ramp, acclivity; drop, descent, declivity; North American grade 1.1The degree of a slope: the path becomes very rough as the gradient increases...- The lower 150m section has a gentle gradient of 12 degrees providing an ample and safe area to test out those first turns.
- Therefore if Cross-rail precedes electrification, then diesel units would be used for cross-city services which would easily negotiate the gradients and angles.
- It had a gradient of about 45 degrees and was strewn with loose rocks and boulders.
Synonyms steepness, angle, slant, slope, inclination, leaning 1.2 Mathematics The degree of steepness of a graph at any point.The abrupt changes in gradient visible in the graph are caused when the number of relevant genetic backgrounds i max changes from one integer value to the next....- Differentiation is a method of working out the gradient of a curve - how quickly one variable changes with respect to another.
- In a moment we will demonstrate what the gradient of the curve at a point is, by examining a limiting argument.
2 Physics An increase or decrease in the magnitude of a property (e.g. temperature, pressure, or concentration) observed in passing from one point or moment to another.Distinct gradients in pressure were observed throughout the contact area....- We observed a gradient in the depth of the selective sweep, which becomes progressively deeper as you get nearer to the gene.
- I assure you, however, I have accurately mapped the topological surface density and transitional energy gradients of the timeline in question.
2.1The rate of such a change. 2.2 Mathematics The vector formed by the operator ∇ acting on a scalar function at a given point in a scalar field. Origin Mid 19th century: from grade, on the pattern of salient. Rhymes irradiant, radiant |