carry-check and quick drop valve的意思|示意
美 / /
英 / /
携带止回阀和快速降阀
carry-check and quick drop valve的网络常见释义
输送 ... carry away；把...带走，运走 carry-check and quick drop valve；输送-止回和快降阀 carry-check line；输送-止回管路 ...