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jackknife    
n. 大折合式刀,镰刀式跳水
vi. 弯身
vt. 用大折刀切

大折合式刀,镰刀式跳水弯身用大折刀切

jackknife
n 1: a large knife with one or more folding blades [synonym: {clasp
knife}, {jackknife}]
2: a dive in which the diver bends to touch the ankles before
straightening out
v 1: dive into the water bending the body at the waist at a
right angle, like a jackknife

Jackknife \Jack"knife`\, n.
A large, strong clasp knife for the pocket; a pocket knife.
[1913 Webster]

75 Moby Thesaurus words for "jackknife":
adz, ax, belly buster, belly flop, belly whopper, bread knife,
bushwhacker, butcher knife, cannonball, carving knife, chaser,
chisel, cleaver, clipper, clippers, crash dive, dagger, dive, drop,
fall, gainer, gouge, hack, hatchet, header, hoe, hunting knife,
knife, lance, lancet, letter-opener, machete, mattock, nippers,
nose dive, paper cutter, paper knife, parachute jump, paring knife,
penknife, pick, pickax, pitch, plowshare, plunge, pounce,
power dive, razor, razor blade, running dive, saw knife, sax,
scalpel, scissors, scoop, scraper, scuffle hoe, scythe, share,
shears, sheath knife, sickle, sidecutters, sky dive, snips, spear,
spokeshave, stationary dive, stoop, surgical knife, swan dive,
swoop, sword, table knife, wedge

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  • JACKKNIFE Definition Meaning - Merriam-Webster
    The meaning of JACKKNIFE is a large strong pocketknife How to use jackknife in a sentence
  • Jackknife - Wikipedia
    Jackknife may refer to: Pocketknife or jackknife, a compact, foldable knife Jackknife Bar, Portland, Oregon, U S Jackknifing, a type of crash with articulated vehicle combinations
  • Jackknife resampling - Wikipedia
    In statistics, the jackknife (jackknife cross-validation) is a cross-validation technique and, therefore, a form of resampling It is especially useful for bias and variance estimation The jackknife pre-dates other common resampling methods such as the bootstrap
  • Home - Jacknife
    Born from the idea that fast-casual food can be healthy and delicious, we thoughtfully source fresh, high-quality ingredients for all of our dishes that you can easily enjoy on the go We move fast Don’t miss out Join our mailing list for specials, new menu items, and restaurant updates We’re always looking for talented staff
  • JACKKNIFE | definition in the Cambridge English Dictionary
    jackknife noun [C] (JUMP) a dive (= jump into water, with your head and arms going in first) in which the diver, while in the air, bends from the waist to touch the toes without bending the legs, and then becomes straight again:
  • Jackknifing - Wikipedia
    Jackknifing is the folding of an articulated vehicle so that it resembles the acute angle of a folding pocket knife If a vehicle towing a trailer skids, the trailer can push the towing vehicle from behind until it spins the vehicle around and faces backwards
  • JACKKNIFE Definition Meaning | Dictionary. com
    to bend or double over like a jackknife The prizefighter jackknifed and fell when he was hit in the stomach (of a trailer truck) to have the cab and trailer swivel at the linkage until they form a V shape, as the result of an abrupt stop or accident (in diving) to perform a jackknife to move rapidly at an abrupt angle
  • Resampling Methods: Bootstrap vs jackknife - Data Science Central
    The Jackknife works by sequentially deleting one observation in the data set, then recomputing the desired statistic It is computationally simpler than bootstrapping, and more orderly (i e the procedural steps are the same over and over again)
  • Microsoft Word - Delete-d jackknife. doc
    One of the earliest techniques to obtain reliable statistical estimators is the jackknife technique It requires less computational power than more recent techniques
  • jackknife — Wordorigins. org
    A jackknife is a clasp knife, one where the blade folds into the handle Clasp knives have been around since antiquity, but the term jackknife dates to the mid seventeenth century and arose in the north of England or in Scotland





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