Lub nplhaib hlau nplaum yog cov hlau nplaum uas siv dav, muaj lub nplhaib puab thiab lub nplhaib sab nraud. Lub zog sib nqus ntawm cov nplhaib sab hauv thiab sab nrauv yog ib qho tseem ceeb uas txiav txim siab qhov ua tau zoo ntawm cov hlau nplaum.
Ua ntej, lub zog sib nqus ntawm cov nplhaib sab hauv thiab sab nraud ncaj qha cuam tshuam rau lub zog sib nqus ntawm cov hlau nplaum. Qhov siab dua qhov sib nqus lub zog ntawm lub nplhaib puab, qhov sib nqus lub zog ntau dua, thiab tib yam yog qhov tseeb rau lub zog sib nqus ntawm lub nplhaib sab nraud. Thaum qhov sib txawv ntawm lub zog sib nqus ntawm cov nplhaib sab hauv thiab sab nraud yog ntau dua, lub zog hlau nplaum muaj zog dua, thiab daim ntawv thov ntau ntawm cov hlau nplaum yog dav dua.
Qhov thib ob, lub zog sib nqus ntawm cov nplhaib sab hauv thiab sab nrauv yuav cuam tshuam rau cov duab thiab qhov loj ntawm cov hlau nplaum. Feem ntau hais lus, txoj kab uas hla ntawm lub nplhaib puab yog me dua, txoj kab uas hla ntawm lub nplhaib sab nraud yog loj dua, thiab qhov siab ntawm cov hlau nplaum yog luv dua. Cov hlau nplaum tsim nyob rau hauv txoj kev no tuaj yeem ua rau qhov kev ncua deb ntawm cov nplhaib puab thiab sab nraud kom luv li sai tau, kom lub zog hlau nplaum sib nqus zoo sib xws. Lub sijhawm no, qhov sib txawv ntawm lub zog sib nqus ntawm cov nplhaib sab hauv thiab sab nraud yuav tsum yog me me li sai tau kom ntseeg tau tias qhov sib txawv ntawm cov hlau nplaum.
Thaum kawg, lub zog sib nqus ntawm cov nplhaib sab hauv thiab sab nrauv yuav cuam tshuam ncaj qha rau kev ruaj ntseg ntawm cov hlau nplaum. Thaum qhov sib txawv ntawm lub zog sib nqus ntawm cov nplhaib sab hauv thiab sab nraud loj dhau, qhov sib nqus ntawm cov hlau nplaum yuav tsis ruaj khov, ua rau cov hlau nplaum tsis ua haujlwm. Yog li ntawd, qhov tsim nyog tsim ntawm lub zog sib nqus ntawm cov nplhaib sab hauv thiab sab nrauv tuaj yeem txhim kho qhov ruaj khov ntawm cov hlau nplaum, yog li ua tau raws li qhov xav tau ntawm kev siv sib txawv.
