例句與造句

1. The aerodynamics are novel, combining vestigial cruciform wings with grid fins used as tail MOAB ).
2. Stabilising fins are used as fletching on planar and shaped like small wings, although grid fins are sometimes used.
3. At high Mach numbers, grid fins flow fully supersonic and can provide lower drag and greater maneuverability than planar fins.
4. The Block A also included four grid fins, which were later used on Soviet air-to-air missile designs.
5. Four grid fins on the outside of the shroud opened and the descent module separated from the orbital module at an altitude of 650 meters ( 2132 feet ), dropping free of the shroud.
6. It's difficult to find grid fins in a sentence. 用grid fins造句挺難的
7. In 2014, SpaceX tested grid fins on a first-stage reentry to help guide a commercial Falcon 9 first stage back to land for the first successful orbital booster landing in spaceflight history.
8. Grid fins have a much shorter chord ( the distance between leading and trailing edge of the surface ) than planar fins, as they are effectively a group of short fins mounted parallel to one another.
9. In Russia, they are often referred to as " " grid fins after Russian computational mechanician ( also known as an advisor of Yuri Gagarin aerospace engineering thesis, where grid fins were examined too ), who developed them in the 1950s.
10. In Russia, they are often referred to as " " grid fins after Russian computational mechanician ( also known as an advisor of Yuri Gagarin aerospace engineering thesis, where grid fins were examined too ), who developed them in the 1950s.
11. Many of the test objectives were achieved on the first attempt, including bringing the stage to the specific location of the floating platform and collecting a large amount of test data with the first use of grid fin control surfaces for more precise reentry positioning.
12. Grid fins perform very well at subsonic and supersonic speeds, but poorly at transonic speeds; the flow causes a normal shockwave to form within the lattice, causing much of the airflow to pass completely around the fin instead of through it and generating significant wave drag.
13. I enjoy using my writing skills to turn a jumble of facts into a real article, such as I did with Mansard roof or North River ( Hudson River ), or to create the occasional DYK such as oil gusher ( my first article ) or grid fin.
14. As part of SpaceX's efforts to develop a reuseable launch system, selected first stages include four extensible landing legs Grid fins were implemented on the Falcon 9 v1.1 on the CRS-5 mission, but ran out of hydraulic fluid before a planned landing.
15. Grid fins have been used on conventional missiles and bombs such as the Vympel R-77 air-to-air missile; the 3M-54 Klub ( SS-N-27 Sizzler ) family of cruise missiles; and the American Quick-MEDS delivery system and as part of the launch escape system for the Soyuz spacecraft.
16. Grid fins can be folded, pitched forward ( or backwards ), against the cylindrical body of a missile more directly and compactly than planar fins, allowing for more compact storage of the weapon; this is of importance where weapons are launched from a tube or for craft which store weapons in internal bays, such as stealth aircraft . Generally, the grid fins pitch forward / backward away from the body shortly after the missile has cleared the firing craft . In the case of the MOAB, grid fins allow the weapon to fit inside a C-130 cargo bay for deployment while the craft is in flight.
更多例句：  下一頁