headward造句

例句与造句

1. The alluvium is " 10 feet ( 3 m ) or more thick in the lower reaches of the Plunketts Creek valley ", but only " 6 feet ( 2 m ) thick in headward tributary valleys ".
2. In-flight photographs from Skylab 2 revealed the " puffy face syndrome " which prompted the addition of in-flight torso and limb girth measurements to gather more data on the apparent headward fluid shift on Skylab 3.
3. "' Headward erosion "'is erosion at the origin of a stream channel, which causes the origin to move back away from the direction of the stream flow, and so causes the stream channel to lengthen.
4. The meta-sedimentary rock along with the granite batholith that forms Black Mountain are remnants of what laid hidden beneath a sea and underground, that are now exposed by headward erosion that continues northward today into Arizona s Transition Zone.
5. While additional deep testing may reveal other information, at this time the most appropriate hypothesis is to regard all of these adjacent landforms as non-cultural portions of the higher soils, dissected by centuries [ if not millennia ] of natural headward erosion and downslope weathering ."
6. It's difficult to find headward in a sentence. 用headward造句挺难的
7. Headward erosion creates three major kinds of drainage patterns : " trellis patterns " and " rectangular and angular patterns " . "'Dendritic patterns "'form in homogenous landforms where the underlying bedrock has no structural control over where the water flows.
8. Changes in elevation can be due to changes in the base level ( elevation of the lowest point in the fluvial system, usually the drainage basin ) of the fluvial system, which leads to headward erosion along the length of either a stream or river, gradually lowering its elevation.
9. For example, headward erosion by the Shenandoah River in the U . S . state of Virginia, a tributary of the Potomac River, permitted the Shenandoah to capture successively the original upstream segments of discharge, it accelerated the process of headward erosion until the Shenandoah captured all drainage to the Potomac west of the Blue Ridge Mountains.
10. For example, headward erosion by the Shenandoah River in the U . S . state of Virginia, a tributary of the Potomac River, permitted the Shenandoah to capture successively the original upstream segments of discharge, it accelerated the process of headward erosion until the Shenandoah captured all drainage to the Potomac west of the Blue Ridge Mountains.
11. The water collects in channels where the velocity and erosional power increase, cutting into and extending the heads of gullies . "'Subsequent streams "'form by selective headward erosion by cutting away at less resistive rocks in the terrain . "'Obsequent and resequent streams "'form after time in an area of insequent or subsequent streams.
12. Three kinds of streams are formed by headward erosion : " insequent streams ", " subsequent streams ", and " obsequent and resequent streams " ( " See Fluvial landforms of streams " . ) "'Insequent streams "'form by random headward erosion, usually from sheetflow of water over the landform surface.
13. Three kinds of streams are formed by headward erosion : " insequent streams ", " subsequent streams ", and " obsequent and resequent streams " ( " See Fluvial landforms of streams " . ) "'Insequent streams "'form by random headward erosion, usually from sheetflow of water over the landform surface.
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