Khoom Xov Xwm
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Cov lus ntawm cov kabmob xaiv
Cov kabmob tau tso cai rau kev teeb tsa qhov chaw rau hauv cov kabmob hauv cov hom phiaj thiab nws sab ib sab yog txwv tsis pub coj mus rau hauv cov kev txwv. Feem ntau, tus ncu diam ...Nyeem ntxiv -
Xya lub tswv yim rau kev kho kom zoo
Bearings yog cov khoom siv tseem ceeb uas yuav pab ua kom lub tshuab ua kom zoo thiab nws yog ib qho tseem ceeb lawv raug tswj xyuas kom muaj lub neej ua haujlwm ntev. 1. Tswj nrog kev saib xyuas bearings yog qhov txaus txaus kom tau txais kev puas sai sai ...Nyeem ntxiv -
Kev loj hlob thiab kev siv ntawm cov bearing
Bearings tau nyob ib puag ncig txij li cov neeg Iyiv thaum ub tau tsim cov pyramids. Lub tswvyim tom qab lub log cov kabmob yooj yim: yam yob zoo dua li lawv swb. Thaum cov khoom swb, kev sib txhuam ntawm lawv ua rau lawv poob qis. Yog tias ob qhov chaw tuaj yeem muab ib leeg ntxiv, fr ...Nyeem ntxiv
