英语词汇“野战炮”的读音、翻译、释义、用法及例句-集火网

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词汇	野战炮
释义	野战炮 fieldpiece
随便看	positive correlation positive crystal positive definite positive definite inner product positive definite matrix positive definite operator positive dihedral angle positive direction positive displacement blower positive-displacement expansion engine positive-displacement flow meter positive displacement pump positive-displacement type water meter positive distortion positive divisor positive dromotropism positive duty positive electricity positive electrode positive electron positive electrotropism positive element positive exponent positive factor positive feedback