2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Xaiv cov lus qhia ceev koj tsuas yog muab txoj kab uas hla ntawm lub impeller los ntawm pi (3.14159) uas muab rau koj qhov ncig ntawm lub impeller ntawm sab nraud. Tom qab ntawd koj muab faib los ntawm kev sib hloov ceev ntawm lub impeller (feem ntau rpm, lossis rps) thiab qhov tshwm sim no yog qhov ceev ceev.
txhais li cas los ntawm kev nrawm?
: qhov nrawm ntawm ntug sab nraud ntawm lub log lossis lub taub hau.
Koj ua li cas xam qhov nrawm ntawm RPM?
Koj cov lus qhia meej nrawm tuaj yeem txiav txim siab los ntawm kev siv cov kab zauv hauv qab no: FPM=RPM x. 262 x Hniav Dia (inch).
Nyob ceev ntawm agitator yog dab tsi?
Tip Speed / Peripheral Speed
Blade Speed (ntsis nrawm), ntsuas deb npaum li cas ntawm ib qho taw tes ntawm ntug sab nrauv feem ntau ntawm cov hniav tawg mus rau lub sijhawm teem sijhawm.
compressor ntsis ceev yog dab tsi?
Ib txoj cai dav dav ntawm tus ntiv tes xoo yog tias impeller tip ceev yuav tsum ib txwm muaj nruab nrab ntawm 650 thiab 900 ft / sec (198 thiab 274 m / sec)rau kev tsim cov impeller tag nrho. Impeller tip ceev muaj feem xyuam rau ob qho tib si txhua yam thiab aerodynamic txwv cuam tshuam nrog compressor tsim.
Pom zoo:
Nyob rau hauv angiosperms pollen yog tsim nyob rau hauv anthers ib feem ntawm?
Nyob rau hauv angiosperms, paj ntoos yog tsim los ntawm anthers ntawm the stamens hauv paj. Hauv gymnosperms, nws yog tsim nyob rau hauv microsporophylls ntawm microstrobili (txiv neej paj ntoos cones). Pollen muaj ib los yog ntau tshaj cov noob qoob loo thiab ib lub qe qe.
Nyob hauv kab laum spermatheca muaj nyob hauv?
7th plab ntu ntawm txiv neej. Puas poj niam kab laum muaj Spermatheca? Ib khub spermatheca tam sim no thiab qhib rau hauv qhov chaw mos. Puas muaj Spermatheca nyob rau hauv txiv neej kab laum? Teb: (a) Kab laug sab (b) Plaub khub ntawm cov phev muaj 6-9 ntu ntu.
Nyob rau hauv vernalisation flowering nyob rau hauv cov nroj tsuag yog?
Vernalization (los ntawm Latin vernus, "ntawm lub caij nplooj ntoos hlav") yoginduction ntawm cov nroj tsuag flowering txheej txheem los ntawm raug rau lub caij txias ntawm lub caij ntuj no, los yog los ntawm ib qho khoom sib npaug.
Nyob rau hauv daim siab detoxifying enzymes nyob rau hauv dab tsi organelle?
Cov enzymes uas tsim cov lipid Cheebtsam ntawm lipoproteins nyob rau hauv daim nyias nyias ntawm ER smooth ER Lub du endoplasmic reticulum tsis muaj ribosomesthiab ua haujlwm hauv lipid synthesis tab sis tsis metabolism, kev tsim cov tshuaj hormones steroid, thiab detoxification.
Leej twg detering nyob rau hauv tag nrho cov nyob ntsiag to nyob rau sab hnub poob pem hauv ntej?
Detering yog tus neeg ua liaj ua teb los ntawm Txhua Tus Neeg Tsis Txaus Siabntawm Sab Hnub Poob los ntawm Erich Maria Remarque. Nws muaj siab mos siab muag, tshwj xeeb tshaj yog thaum nws los txog rau nees. Nws muaj kev kub ntxhov loj heev thaum nws hnov cov nees quaj thiab txawm sim tua lawv kom kawg lawv txoj kev txom nyem.
