2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Nws tau tsim nyob rau xyoo 1817 los ntawm Parisian Jean Asté, lub npe hu ua Halary, thiab tau siv dav hauv Fab Kis thiab Askiv bands thiab orchestras kom txog thaum hloov los ntawm tuba ze rau qhov kawg ntawm lub xyoo pua 19th.
ophicleide ua si li cas?
Nws lub raj ntev khoov rov qab rau ntawm nws tus kheej, thiab nws tau ua si nrog lub khob qhov ncauj zoo ib yam rau niaj hnub trombone thiab euphonium mouthpieces. Ameslikas muaj cuaj tus yuam sij, tab sis tom qab ntawd nthuav mus rau ntau li kaum ib tus yuam sij nrog kaum ob qhov (ob lub qhov rau E), npog lub suab nrov loj.
Lub ophicleide ua li cas?
Lub ophicleide yog ib feem ntawm tsev neeg ntawm cov kab mob tseem ceeb tsim los ntawm Hallary thaum ntxov 1800's. Thaum cov neeg soprano ntawm tsev neeg (hauv Eb, C, thiab Bb, tsawg kawg) tau ua nyob rau hauv ib lub kauj, nyob rau hauv cov duab ntawm ib tug bugle, cov tswv cuab loj tau ua ncaj.
Leej twg tsim tus nab?
Nws tau tsim nyob rau xyoo 1590 los ntawm Edme Guillaume, Fabkis canon ntawm Auxerre, raws li kev txhim kho ntawm cov ntses bass thaj tsam ntawm cov cornett zoo sib xws. Nws yog ua los ntawm ntoo nyob rau hauv ib tug serpentine nkhaus 7 mus rau 8 ko taw (2 mus rau 2.5 m) ntev, thiab nws muaj ib tug conical bore thiab rau ntiv tes qhov.
Ntxawm nab tuaj qhov twg?
Cov cuab yeej tau lees tias tau tsim los ntawm tus txiv plig hu ua Edmé Guillaume hauv xyoo 1590 hauv Auxerre, Fabkis, thiab thawj zaug siv los txhawb lub suab hu nkauj hauv plainchant.
Pom zoo:
Cov neeg koom nrog kev lag luam twg yog cov neeg siv khoom ntawm cov tuam txhab tshuaj?
Nyiaj Tshuaj Johnson & Johnson ($ 276 billion tus nqi lag luam) Novartis ($ 273 billion) Pfizer ($ 212 nphom) Merck ($ 164 billion) GlaxoSmithKline ($ 103 billion) Eli Lilly ($ 98 nphom) Leej twg yog cov players hauv kev lag luam tshuaj?
Leej twg pib siv cov cuab yeej siv tau?
Nyob rau xyoo 1961, Edward Thorp thiab Claude Shannon Claude Shannon Shannon tau txais txiaj ntsig los ntawm kev tsim cov teeb liab-khiav graphs, hauv 1942. Nws nrhiav pom cov qauv nce topological thaum tshawb xyuas qhov ua haujlwm. kev ua haujlwm ntawm lub computer analog.
Puas gdpr cov luag haujlwm siv rau cov neeg siv khoom?
Txawm tias koj tsis muaj chaw lossis nyob hauv EU, GDPR siv rau koj lub tuam txhab yog tias koj ua cov ntaub ntawv tus kheej ntawm cov neeg nyob ntawd. Yog li, yog tias koj ua haujlwm hauv chaw sib cuag uas tswj xyuas cov neeg siv khoom sib raug zoo nrog cov neeg nyob hauv EU, piv txwv li, nws muaj kev nyab xeeb xav tias koj lub lag luam poob rau hauv txoj cai tshiab.
Koj puas tuaj yeem siv cov roj pleev roj rau ntawm cov khoom siv yas?
Ntxhais tub, da dej, dab dej - fiberglass &pobzeb; qhov cub, qhov cub, grills, hoods, tub yees; pem teb - pobzeb, yas, pob zeb, ntaub pua plag, tsis muaj quav ciab, lev; aluminium & vinyl siding, fiberglass, canvas, chrome; RVs, nkoj; pas dej ua ke, patio rooj tog &
Cov txheej txheem vuam twg siv cov khoom siv hluav taws xob?
Cov txheej txheem hlau inert gas (MIG)siv cov khoom siv hluav taws xob, uas feem ntau yog nyob rau hauv daim ntawv ntawm tooj liab-coated coiled hlau. Argon yog siv los tiv thaiv cov vuam, thiab ncaj qha tam sim no nrog cov electrode yog qhov zoo los tsim kom muaj cua sov ntau rau melting.
