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inessential    
a. 无关紧要的
n. 无关紧要的东西

无关紧要的无关紧要的东西

inessential
adj 1: not basic or fundamental [synonym: {inessential},
{unessential}] [ant: {essential}]
2: not absolutely necessary
n 1: anything that is not essential; "they discarded all their
inessentials" [synonym: {inessential}, {nonessential}] [ant:
{essential}, {necessary}, {necessity}, {requirement},
{requisite}]


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英文字典中文字典相关资料:


  • Brief History of GPS | The Aerospace Corporation
    The launch of Navstar II-1 on February 14, 1989 was the first GPS Block II satellite placed on orbit and the first mission of the Delta II rocket Aerospace helped plan and monitor launch simulations, tests, and rehearsals
  • Global Positioning System - Wikipedia
    Navigation Technology Satellite – II (Timation IV): NTS-II, the first satellite completely designed and built by NRL under GPS Joint Program funding Launched June 23, 1977
  • Global Positioning System History - NASA
    Embracing previous ideas from Navy scientists, the DoD decided to use satellites to support their proposed navigation system DoD then followed through and launched its first Navigation System with Timing and Ranging (NAVSTAR) satellite in 1978
  • Who Invented GPS? Powerful Minds Behind the History of GPS
    The first GPS satellite, Navstar 1, was launched in 1978 Full Operational Capability (FOC): The development and deployment of the full constellation of GPS satellites took several years By the mid-1990s, GPS reached Full Operational Capability with a constellation of 24 satellites
  • Navstar 1, the world’s first operational GPS satellite, launches
    The U S Air Force launches Navstar 1, the world’s first operational GPS satellite, from Vandenberg Air Force Base in California GPS begins as a military technology, but expands to transform
  • First GPS Satellite Launched Date: The Beginning of Navigation
    TL;DR: The first GPS satellite, Navstar GPS Block I-A (Navy Navigation Satellite), was launched on **February 22, 1978**, marking the beginning of modern satellite-based navigation
  • GPS First Satellite Shocking Legacy: 7 Incredible Facts Revealed
    This first GPS satellite—known as Navstar 1—would provide, for the first time, a practical, all-encompassing system designed to pinpoint locations anywhere on Earth with unprecedented accuracy
  • When Was the GPS Invented? Timeline Evolution
    Five years after work began, the first experimental GPS satellites emerged They were successfully launched into orbit, and their main job was to test the system's ability to calculate positions accurately, reliability, and the feasibility of satellite-based navigation
  • When Was the GPS System Invented? - AEANET
    The first satellite navigation system was Transit, developed by the US Navy in the 1960s Transit used the Doppler effect to determine a satellite’s position, which could then be used to calculate a user’s location on Earth
  • GPS History : A Timeline of the Facts You Need
    From 1957 to today, discover the history of GPS over the years When Russia launched their satellite Sputnik in 1957, the U S may have been disappointed, but the launch gave way to a major American invention: GPS





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