Video: Qhov luaj li cas yog dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Bay Loj txhais tau hais tias thaj tsam ntawm thaj av, nyob rau hauv square meter, uas nyob rau hauv lub tswv yim ntawm lub nroog yuav tsum tau muab rau ib tug standard tsheb nres qhov chaw; "Cov Nqi Tsim Kho" txhais tau hais tias tus nqi kwv yees ntawm kev tsim kho thiab txhim kho qhov chaw nres tsheb ntawm lub tsheb Bay Loj suav nrog thaj chaw maneuvering thiab cov kev pabcuam cuam tshuam xws li
Ua raws li qhov no, qhov dav dav yog dab tsi?
Kab rov tav nyob nruab nrab ntawm ob lub ru tsev ua tiav Trusses yog hu ua bay dav . kuj nyob rau hauv ib tug framed qauv yog hais tias muaj kab ob lengthwise thiab dav wise, kab rov tav nrug dav yog hu ua span thiab qhov kev ncua deb ntawm ob tug xws li thav ntawv yog hu ua bay dav.
Ib yam li ntawd, lub bay hauv ib lub tsev yog dab tsi? Bay , hauv architecture, txhua qhov kev faib ntawm a lub tsev nruab nrab ntawm cov kab ntsug lossis dav hlau, tshwj xeeb tshaj yog tag nrho qhov chaw suav nrog ntawm ob qhov kev txhawb nqa uas nyob ib sab; Yog li, qhov chaw nruab nrab ntawm ob kab, lossis pilasters, lossis los ntawm pier mus rau pier hauv lub tsev teev ntuj, nrog rau qhov chaw ntawm lub vaulting lossis qab nthab ntawm lawv, yog hu ua bay.
Ib yam li ntawd, lub bay loj npaum li cas?
Chesapeake Bay Chesapeake Bay npog 4, 480 square mais, muaj shoreline ntawm 11, 684 mais, thiab tuav ntau tshaj 15 trillion nkas loos dej brackish. Sab qaum teb yog rau sab xis hauv daim duab no. Image courtesy ntawm NASA.
Tus lej bay yog dab tsi?
bay . Los ntawm - Webopedia Cov Neeg Ua Haujlwm. Luv luv rau tsav bay , qhov no yog hais txog ib qhov chaw hauv lub computer tus kheej uas lub hard drive lossis floppy disk drive, CD-ROM tsav lossis daim kab xev tsav tuaj yeem ntsia tau. Yog li ntawd, lub tus lej ntawm drive bays nyob rau hauv ib lub computer txiav txim seb yuav ua li cas muaj pes tsawg lub chaw cia khoom siv nyob rau hauv nruab.
Pom zoo:
Dab tsi yog qhov dav thawj qhov kev tshawb nrhiav thiab qhov tob thawj qhov kev tshawb fawb?
BFS sawv rau Breadth First Search. DFS sawv cev rau Kev Tshawb Nrhiav Qhov tob. 2. BFS (Breadth First Search) siv Queue cov qauv ntaub ntawv los nrhiav txoj hauv kev luv tshaj. BFS tuaj yeem siv los nrhiav ib qhov chaw luv tshaj plaws hauv cov duab tsis hnyav, vim tias hauv BFS, peb mus txog qhov kawg uas muaj qhov tsawg kawg nkaus ntawm cov npoo los ntawm qhov chaw vertex
Dab tsi yog sparse kem Dab tsi yog qhov zoo thiab qhov tsis zoo?
Koj poob 4 bytes tsis yog ib zaug ib kab; tab sis rau txhua lub cell hauv kab uas tsis yog null. Qhov zoo ntawm SPARSE kem yog: Qhov tsis zoo ntawm SPARSE kem yog: SPARSE kem tsis tuaj yeem siv rau ntawm cov ntawv, ntext, duab, timestamp, geometry, geography lossis cov neeg siv cov ntaub ntawv teev tseg
Dab tsi yog qhov qub txeeg qub teg Dab tsi yog qhov sib txawv ntawm qhov qub txeeg qub teg piav nrog piv txwv?
Inheritance yog ib txoj hauv kev kom tau txais cov yam ntxwv thiab kev coj cwj pwm ntawm ib chav kawm los ntawm lwm chav kawm. Cov chav kawm uas cov tswv cuab tau txais qub txeeg qub teg yog hu ua chav kawm hauv paus, thiab chav kawm uas tau txais cov tswv cuab tam sim no hu ua chav derived. Inheritance siv IS-A kev sib raug zoo
Dab tsi yog qhov zoo sib xws thiab qhov txawv ntawm relays thiab PLC yog dab tsi?
Relays yog electro-mechanical keyboards uas muaj coil thiab ob hom kev sib cuag uas tsis yog NO & NC. Tab sis Programmable Logic Controller, PLC yog lub khoos phis tawj me uas tuaj yeem txiav txim siab raws li qhov kev zov me nyuam thiab nws cov tswv yim & tso tawm
Dab tsi yog qhov sib txawv ntawm qhov ntsuas qhov ntsuas thiab qhov ntsuas thib ob?
Primary index: nyob rau hauv ib tug sequentially order file, qhov Performance index uas nws search key qhia cov sequential order ntawm cov ntaub ntawv. Kuj hu ua clustering index. Secondary index: ib qho Performance index uas nws qhov tseem ceeb tshawb nrhiav qhia qhov kev txiav txim sib txawv ntawm qhov kev txiav txim ntawm cov ntaub ntawv. Kuj hu ua non-clustering index