U-puab lub nplhaib, feem ntau siv hauv kev tsim cov tshuab kaw lus hydraulic hauv lub foob foob. Siv dav hauv kev tsim kho tshuab hydraulic lub tog raj kheej foob. O-ring yog siv rau kev khi zoo li qub thiab rov qab sib khi. Thaum siv rau Kev Tsiv Meem Meem Meem Qiv Qiv, nws tsuas yog siv rau kev nrawm qis qeeb mentshis ...
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