Xov xwm

Detergent hmoov tuaj yeem siv tau rau hauv kev ua liaj ua teb, thiab muaj cov hauv paus scientific thiab siv cov txheej txheem, nrog rau qee qhov teeb meem xav tau saib x...

Cov tshuaj ntxuav tu cev yog siv rau hauv kev lag luam kom tshem tawm cov tshuaj lom neeg lossis tshuaj lom rau kev tshem tawm cov av. Cov tshuaj ntxuav tu ...

Hauv kev kis mob no, peb lub tuam txhab tau saib xyuas lub luag haujlwm hauv zej tsoom thiab pab txhawb nqa thaum ntxov ntawm Wuhan.

Los ntawm cov txheej txheem tsim khoom, cov hmoov ntxhua khaub ncaws zoo tib yam tau txais los ntawm kev txau cov hmoov hauv cov pej thuam siab, uas yog feem ntau hollow hais, y...

Qhov sib xyaw ntawm cov hmoov ntxhua ntxhua thiab cov hmoov ntxhua hauv tsev tseem txawv heev, thiab cov sij hawm siv kuj txawv heev.

Kev lag luam chemical machinery niaj hnub yog qhov system engineering txuas cov khoom tshawb nrhiav thiab kev txhim kho, tsim qauv system, cuab yeej tsim khoom, teeb tsa ...