查詢詞典 wrecking pump
- 與 wrecking pump 相關的網(wǎng)絡例句 [注：此內(nèi)容來源于網(wǎng)絡可以直接看的av网址站，僅供參考]
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Under the demand of wrecking-drainage system in different gradient deep mines, a mathematics model for analyzing the hydraulic transient of the sideling large-scale submersible motor pump drainage system is established, and the hydraulic transient of six different angles of the drainage system caused by power failure are calculated.
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In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.
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