approach grade造句

例句与造句

1. Train engineers sound their whistles mostly when they approach grade-level crossings, of which the UnitEf Kuates has more than 150, 000.
2. Other deficiencies cited include the steep approach grades ( 5.5 percent on the west side and 6 percent on the east side)
3. This height problem was solved by employing steep 6.5 % approach grades and a fairly short vertical curve at the center of the main span.
4. Its maximum altitude of is less than half the altitude of the current Gotthard Tunnel, and obviates the need to haul trains up long approach grades.
5. After considering an expensive long circuitous route around the ridge formation, a tunnel cutting through the ridge was chosen with an approach grade of 1 in 12?with short radius curves.
6. It's difficult to find approach grade in a sentence. 用approach grade造句挺难的
7. It is important that the approach grades to a guardrail system be very flat ( typically 10 : 1 or flatter ) and that grades and fixed objects behind guardrail be placed at a distance so that it will not affect the performance of the guardrail upon impact and deflection.