Mar 31, 2020 Tso lus

Kuv xaiv li cas xaiv lub tshuab hluav taws xob hluav taws xob?

Thawj yam uas koj xav hais tias xaiv lub tshuab hluav taws xob yog Qhov ceev uas nws ua haujlwm. Qhov ceev yuav yog qis li 300 RPM kom txog rau 800 RPM. Lub RPM sai dua yog rau qhov xeb qhov hos cov tsheb nrawm dua yog rau kev tsav lub hau ntswj rau hauv cov laug cam thiab phab ntsa thiab lwm yam.

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