Ntawm qhov kev siv dag zog qis ntawm Paris Olympic Games Qhov kev cia siab ntau Paris Olympic Games yuav qhib rau lub Xya Hli 26, lub sijhawm hauv zos. Hauv kev npaj rau Kev Ua Si, Paris pawg thawj...
Tsis ntev los no, cov chaw lag luam tau hais tias vim yog cov khoom siv nruj, kev ua lag luam tau txais kev ntseeg siab hauv kev rov qab los ntawm European polyvinyl chloride (PVC) resin nqi. Cov n...
Hydroxyapatite (HAp) yog calcium phosphate zoo ib yam li tib neeg cov ntaub so ntswg tawv hauv morphology thiab muaj pes tsawg leeg 1. Tshwj xeeb, nws muaj cov qauv hexagonal 2, 3 thiab stoichiomet...
Ib qho kev sib xyaw ua ke ntawm oleic acid, linoleic acid, linolenic acid thiab ib qho me me ntawm cov roj fatty palmitic acid, muaj ob txoj hlua tsis txaus. Lub teeb daj pob tshab oily kua nyob ra...
Phau Ntawv Qhia Txog Ntau Yam Kev Siv Tshuaj Hauv Lub Neej Txhua Hnub Koj tuaj yeem nrhiav chemistry thiab kev siv tshuaj nyob ib puag ncig koj. Txawm tib neeg lub cev yog tsim los ntawm cov tshuaj...
Kev kho mob ntawm daim tawv nqaij: Salicylic acid yog ib tug muaj zog keratolytic neeg sawv cev uas yuav siv tau los kho cov kab mob ntawm daim tawv nqaij xws li pob txuv, eczema, thiab psoriasis.
Kev kho mob intermediates ua lub luag haujlwm tseem ceeb hauv kev tsim tshuaj, nrog rau kev siv dav thiab ntau yam.
Pharmaceutical intermediates yog qee cov khoom siv tshuaj lom neeg lossis cov khoom siv hauv cov txheej txheem ntawm cov tshuaj synthesis, thiab lawv ua lub luag haujlwm tseem ceeb hauv ntau yam ke...
Palmitonin tuaj yeem tsim cov yeeb yaj kiab tiv thaiv ntawm daim tawv nqaij, txo qis kev ua xua rau sab nraud thiab tsis txhob ua kom tawv nqaij ntau dhau.
Kev tiv thaiv tshav ntuj muaj txiaj ntsig zoo thiab dav dav: Nrog rau qhov kev thov ntau ntxiv rau kev tiv thaiv lub hnub, cov tshuaj pleev thaiv hnub tau txhim kho rau kev tiv thaiv kom muaj txiaj...
