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impenetrable    音标拼音: [ɪmp'ɛnətrəbəl]
a. 不能穿过的,不可理喻的,费解的,顽固的

不能穿过的,不可理喻的,费解的,顽固的

impenetrable
adj 1: not admitting of penetration or passage into or through;
"an impenetrable fortress"; "impenetrable rain forests"
[ant: {penetrable}]
2: permitting little if any light to pass through because of
denseness of matter; "dense smoke"; "heavy fog";
"impenetrable gloom" [synonym: {dense}, {heavy}, {impenetrable}]
3: impossible to understand; "impenetrable jargon"

Impenetrable \Im*pen"e*tra*ble\, a. [L. impenetrabilis; pref.
im- not penetrabilis penetrable: cf. F.
imp['e]n['e]trable.]
1. Incapable of being penetrated or pierced; not admitting
the passage of other bodies; not to be entered;
impervious; as, an impenetrable shield.
[1913 Webster]

Highest woods impenetrable
To star or sunlight. --Milton.
[1913 Webster]

2. (Physics) Having the property of preventing any other
substance from occupying the same space at the same time.
[1913 Webster]

3. Inaccessible, as to knowledge, reason, sympathy, etc.;
unimpressible; not to be moved by arguments or motives;
as, an impenetrable mind, or heart.
[1913 Webster]

They will be credulous in all affairs of life, but
impenetrable by a sermon of the gospel. --Jer.
Taylor.
[1913 Webster]

115 Moby Thesaurus words for "impenetrable":
Greek to one, ambiguous, arcane, beyond reach,
beyond understanding, cabalistic, close, close-knit,
close-textured, close-woven, closed forever to, closed to, compact,
compacted, compressed, concentrated, concrete, condensed,
congested, consolidated, crammed, crammed full, crowded, dense,
exuberant, firm, flourishing, gluey, gross, hard, heavy, holeproof,
impassable, impermeable, impervious, impregnable, inaccessible,
inarticulate, incognizable, incoherent, incomprehensible,
incontestable, indomitable, inexpugnable, inscrutable, insuperable,
invincible, inviolable, invulnerable, irresistible, jam-packed,
jammed, jungled, jungly, lost to, lush, luxuriant, massive, mystic,
nonporous, nonpuncturable, numinous, out of reach, overgrown,
overpowering, overrun, overwhelming, packed, past comprehension,
punctureproof, rambling, rank, resistless, riotous, serried, solid,
substantial, thick, thick-growing, thickset, un-come-at-able,
unaccessible, unaccountable, unapproachable, unassailable,
unattainable, unavailable, unbeatable, unconnected, unconquerable,
undiscoverable, unfathomable, ungettable, ungraspable, unguessed,
unintelligible, unknowable, unobtainable, unpassable, unperforable,
unpierceable, unprocurable, unreachable, unsearchable, unsecurable,
unsubduable, unsurmountable, unweeded, unyielding, viscid, viscose,
viscous, weed-choked, weed-ridden, weedy


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  • Geology of the Rocky Mountains - Wikipedia
    The Rocky Mountains took shape during an intense period of plate tectonic activity that resulted in much of the rugged landscape of western North America The Laramide orogeny, about 80–55 million years ago, was the last of the three episodes and was responsible for raising the Rocky Mountains [1]
  • Geology of Rocky Mountain National Park | U. S. Geological Survey - USGS. gov
    At about 285 million years ago, a mountain building processes raised the ancient Rocky Mountains This ancient mountain range was much smaller than the modern Rockies, only reaching up to 2,000 feet high and stretching from Boulder to Steamboat Springs, Colorado
  • Formation Of The Rockies: The 5 Geological Events For The Massive . . .
    The Rocky Mountains, formed over millions of years through the dramatic geological processes of the Laramide Orogeny, are not just a geological marvel They are also home to a vibrant and diverse ecosystem shaped by the unique environmental conditions of this high-altitude landscape
  • How Were the Rocky Mountains Formed? - ScienceInsights
    The Rocky Mountains formed between 80 and 55 million years ago, during a tectonic event geologists call the Laramide orogeny What makes their origin unusual is that they rose up roughly 1,000 miles inland from the nearest plate boundary, far from where mountains typically form
  • Rocky Mountains - Wikipedia
    The Rockies formed 55 million to 80 million years ago during the Laramide orogeny, in which a number of plates began sliding underneath the North American plate The angle of subduction was shallow, resulting in a broad belt of mountains running down western North America [5]
  • Geologic Activity - Rocky Mountain National Park (U. S. National Park . . .
    Almost 70 million years ago, the Rocky Mountain uplift began Giant blocks of ancient crystalline rock, overlain by younger sedimentary rock, broke and were thrust upward Even as the uplift occurred, streams started eroding away the sedimentary rocks and washed new sediments to the east and west
  • How Long Ago Did the Rocky Mountains Form? - Biology Insights
    How long ago did the Rockies form? Explore the deep history of their uplift, erosion, and ancient precursors
  • Rocky Mountain System Provinces (U. S. National Park Service)
    The Rocky Mountains are massive mountain ranges that stretch from Canada to central New Mexico They took shape during a period of intense plate tectonic activity around 170 to 40 million years ago
  • Rocky Mountains | U. S. Geological Survey - USGS. gov
    The Rocky Mountains rise abruptly above the bordering regions, particularly on the east and northeast where they are flanked by plains, less so on the west and southwest where they are bounded by high plateaus
  • How the Rocky Mountains Formed: A Journey Through Changing Scientific . . .
    Science is built to change as new information becomes available Let me give you an example from geology The basic question that we will look at is the formation of the Rocky Mountains





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