Dab Tsi Ntawm Cov Khoom Phom Taw Rau Neeg
Apr 09, 2019| Dab tsi yog qhov haib ntawm xau txheej rau cov neeg
1. Lub tshuab nqus tsev ua rau me nyuam raug mob tsawg.
2. Electromagnetic tawg yog heev me me.
3. Lub tshuab nqus tsev twj tso kua mis kom ncaj qha mus rau sab nraum zoov.
4. Tom qab txheej, qhib lub tshuab nqus tsev vacuum, tej zaum yuav muaj hmoov av ntau, xyuam xim tsis ua pa rau hauv txoj hlab ntsws.
5. Tsis txhob saib ntshav qis ntev ntev. Lawv tuaj yeem tsim kev puas tsuaj rau lub qhov muag.
6. Yog tias koj xav tau kom sov, cia li ceev faj kom tsis txhob hlawv.
7. Tshem tawm cov txheej txheem roj tsis ntub.
Feem ntau, PVD txheej yog ib cheebtsam zoo nkauj siv tshuab, rau tib neeg thiab ib puag ncig yog phooj ywg, so kom paub siv.
IKS PVD tus cwj pwm zoo, thaum koj khiav lub PVD lub tshuab nqus tsev, Thov ua raws li daim ntawv qhia phau ntawv .Txais nrog peb tam sim no, iks.pvd@foxmail.com
