Qhov zoo tshaj plaws ntawm cov ntim khoom tsis muaj cua yog nws lub peev xwm zoo kawg nkaus los cais cov pa oxygen. Kev tsim cov fwj PP tsis muaj cua ua rau lawv tiv thaiv tau huab cua sab nraud. Qhov no tiv thaiv cov khoom xyaw nquag hauv cov khoom siv tu tawv nqaij. Yog li ntawd, cov khoom khaws nws cov txiaj ntsig thiab tshiab rau lub sijhawm ntev.
Cov khoom siv PP muaj peev xwm tiv taus cua sov zoo. Nws tuaj yeem tswj tau nws qhov ruaj khov thoob plaws ntau qhov kub thiab txias. Qhov no txo qhov cuam tshuam ntawm qhov kub thiab txias sab nraud rau cov khoom siv tawv nqaij, yog li ua rau cov khoom siv tau ntev dua.
Cov khoom siv PP muaj cov yas zoo heev, ua rau muaj ntau yam kev tsim lub raj mis muaj tswv yim
Cov khoom siv PP yog lub teeb yuag tab sis ruaj khov, ua rau nws yooj yim rau kev nqa thiab kev thauj mus los. Lub tshuab nqus tsev - ntim rau hauv lub tshuab nias lossis lub taub hau twj tso kua mis - tsim tau yooj yim siv, tso cai rau kev tswj hwm qhov ntau npaum li cas ntawm cov khoom thiab zam kev pov tseg.
Rau cov neeg uas feem ntau mus ncig ua lag luam lossis mus so, rau lub peev xwm no tsis me dhau, uas yuav tsum tau ntxiv cov khoom siv rau kev saib xyuas tawv nqaij ntau zaus, thiab tsis loj dhau uas ua rau tsis yooj yim nqa. Lawv tuaj yeem ua tau raws li qhov xav tau ntawm kev saib xyuas tawv nqaij txhua hnub rau ib lub sijhawm.
Txawm yog siv rau kev saib xyuas tawv nqaij txhua hnub hauv tsev, lossis siv rau kev mus ncig thiab kev mus ua lag luam, cov fwj tshuaj pleev ib ce 100 ml thiab 120 ml yog qhov zoo tshaj plaws. Hauv cov xwm txheej saib xyuas tawv nqaij txhua hnub, lawv tuaj yeem ua tau raws li qhov xav tau ntawm cov tswv cuab hauv tsev neeg rau ib lub sijhawm. Thaum mus ncig, lawv ua raws li cov cai ntawm cov chaw thauj mus los xws li cov dav hlau txog qhov muaj peev xwm ntim kua uas tso cai rau cov khoom nqa tau, ua rau nws yooj yim rau kev nqa lawv mus rau ntawm lub dav hlau.
| Khoom | Peev Xwm (ml) | Loj (hli) | Khoom siv |
| PA151 | 30 | D48.5 * 83.5 hli |
Lub hau + Lub cev raj mis + Lub taub hau twj tso kua mis: PP; Piston: PE |
| PA151 | 50 | D48.5 * 96 hli | |
| PA151 | 100 | D48.5 * 129 hli | |
| PA151 | 120 | D48.5 * 140 hli | |
| PA151 | 150 | D48.5 * 162 hli | |
| PA151 | 200 | D48.5 * 196 hli |