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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 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
  • JACKKNIFE Definition Meaning - Merriam-Webster
    The meaning of JACKKNIFE is a large strong pocketknife How to use jackknife in a sentence
  • Jackknife Resampling - GeeksforGeeks
    Jackknife resampling is a classic statistical technique used to estimate the bias and variance of a statistic, particularly when the sample size is small or the theoretical distribution of an estimator is complex
  • Jackknife - Wikipedia
    Film and television Jacknife, a 1989 American film by David Jones "Jack Knife", an episode of NCIS Jackknife, a character on Superjail!
  • Jackknife Position: What Is It, Uses, and More | Osmosis
    The jackknife position, also known as the Kraske position, is a variation of the prone position used in certain types of surgery It involves positioning an individual on their stomach (i e , prone) with hips flexed at a 90-degree angle and their head and legs lower than their hips
  • Resampling Methods: The Jackknife - Montana State University
    Now we just use jackknife estimation to calculate the eight b(i) replications, take their mean to get b( ), and calculate the bias and standard errors using b, b(i), and b( )
  • Jackknife Resampling - What Is It, Vs Bootstrapping, Examples
    The jackknife resampling method calculates the estimate's variance and bias in the absence of prohibitive distributional assumptions It is based on the concept of methodically recomputing a given estimate while excluding one or more observations every time the investigator accesses the sample
  • 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:
  • What is a Jackknife and How To Avoid It | Pride Transport
    A jackknife accident is a truck accident that happens when the tractor-trailer begins to overtake the cab This movement leads to a “V” shape





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