常見例句雙語例句These diaphragms prevent leakage along the valve stem.這些橫膈膜防止了沿著閥桿的泄漏。Streng then the valve stem of the size independently, cooperate have guaranteed the valve stem, to neutral and stability.獨立加大尺寸的閥桿，配合閥桿定向桿，保證了閥桿的對中性及穩(wěn)定性。www.chinapower.com.cnStarting at the valve stem you give a quarter turn, and then count three spokes and tighten a quarter turn, and so on around the wheel.閥桿日開始，你給一個四分之一轉(zhuǎn)，再算上三輻條和加強四分之一轉(zhuǎn)，因此左右車輪上。blog.sina.com.cn 返回 valve stem