n.

an upward slope or grade (as in a road)

同義詞：ascentacclivityriseraiseclimb

software that provides better performance than an earlier version did

a reservation that is improved

"I got an upgrade to first class when coach class was full"

the property possessed by a slope or surface that rises

同義詞：riserising slope

hardware that provides better performance than an earlier version did

the act of improving something (especially machinery) by raising it to a higher grade (as by adding or replacing components)

"the power plant received a new upgrade"

Transgenesis upgrades for Drosophila melanogaster.
Considerations for Polarimetric Upgrades to Operational WSR-88D Radars
Signatures for facilitating hot upgrades of modular software components
New Products, Upgrades, and New Releases: A Rationale for Sequential Product Introduction
The Neo-Luddite's Lament: Excessive Upgrades in the Software Industry
The local ETKF and SKEB: Upgrades to the MOGREPS short‐range ensemble prediction system
Reach of Fermilab Tevatron upgrades for SU(5) supergravity models with nonuniversal gaugino masses
Extended Reconstructed Sea Surface Temperature Version 4 (ERSST.v4). Part I: Upgrades and Intercomparisons
MODTRAN4: multiple scattering and bidirectional reflectance distribution function (BRDF) upgrades to MODTRAN
Magnetic resonance imaging/ultrasound-fusion biopsy significantly upgrades prostate cancer versus systematic 12-core transrectal ult...