“railway subgrade maintenance”的概念、定义、翻译、参考文献-科学参考

单词	railway subgrade maintenance
释义	railway subgrade maintenance Encyclopedia 工学铁路路基工程释 railway subgrade maintenance铁路路基养护铁路工务部门对铁路线路的路基所进行的养护和维修。为保持铁路路基本体及附属设施处于良好状态，延长设备使用寿命，及时整治路基病害，预防病害的发生和发展，需经常性有计划地改善路基设备状态。
随便看	pharmaceutical on site analysis pharmaceutical opacifiers pharmaceutical optical microscopy analysis pharmaceutical osmotic pressure regulators pharmaceutical pH adjusting agents pharmaceutical premixed excipients pharmaceutical preparations safety testing pharmaceutical preservatives pharmaceutical pressure sensitive adhesives pharmaceutical price regulation pharmaceutical process pharmaceutical production management pharmaceutical purity analysis pharmaceutical Research of peptide drug pharmaceutical residual host cell DNA test pharmaceutical residue on ignition test pharmaceutical separation technology pharmaceutical snalysis items of injection pharmaceutical snalysis items of otic preparation pharmaceutical solubilizers pharmaceutical solution clarity test pharmaceutical solution color test pharmaceutical stabilizers pharmaceutical surfactants pharmaceutical suspending agents

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