Thaum tus txheej txheem ntawm kev ua ib yam ua rau ib yam khoom thib ob ib yam nkaus, qhov thib ob yog hu ua byproduct. … Lo lus tau nyob ib puag ncig txij li nruab nrab-1800s, thiab hauv tebchaws Askiv nws tau sau nrog tus lej: by-product.
Puas yog by-product los yog-product?
A by-product or byproduct is ib yam khoom thib ob muab los ntawm cov txheej txheem tsim khoom, txheej txheem tsim khoom lossis tshuaj tiv thaiv; nws tsis yog thawj cov khoom lossis kev pabcuam raug tsim tawm.
Koj siv cov khoom lag luam li cas hauv kab lus?
Byproduct kab lus piv txwv
- "Nws yog ib qho khoom los ntawm nws lub peev xwm," Dusty hais. …
- Kev puas siab puas ntsws rau tus menyuam feem ntau yog qhov tshwm sim ntawm kev tsim txom menyuam yaus, uas tuaj yeem ua rau tus menyuam muaj teeb meem coj tus cwj pwm hnyav xws li kev quav yeeb tshuaj lossis kev tsim txom lub cev ntawm lwm tus. …
- Natural gas is a byproduct of oil recovery.
Cov piv txwv ntawm cov khoom lag luam yog dab tsi?
Qee yam piv txwv ntawm cov khoom lag luam yog:
- Khoom noj khoom haus nplua nuj los ntawm kev ua zaub mov.
- Molasses hauv qab zib refining.
- Cov roj txiv hmab txiv ntoo rov qab thaum lub sij hawm tev ntawm cov txiv hmab txiv ntoo tiav.
- Straw from grain harvesting.
- Ntshav tawm thaum lub sijhawm desalination ntawm dej.
- tshauv los ntawm roj combustion.
- Buttermilk hauv kev tsim cov butter.
Thaum twg muaj ib yam khoom los?
A by-product is something uas yog tsim thaum lub sij hawm tsim khoom lossis uantawm lwm yam khoom. Tej yam uas yog los ntawm ib qho kev tshwm sim lossis qhov xwm txheej tshwm sim los ntawm nws, txawm hais tias feem ntau nws tsis xav tau lossis npaj.
