“petroleum tar”的概念、定义、翻译、参考文献-科学参考

单词	petroleum tar
释义	petroleum tar [pǝ`trō·lē·ǝm ´tär] ^MATERIALS A viscous, black or dark-brown product of petroleum refining; yields substantial quantity of solid residue when partly evaporated or fractionally distilled.
随便看	lead-in insulator lead-in spiral lead iodide lead joint lead-lag ballast lead-lag network milling machine milling ore milling planer milling system Millington reverberation formula milling width million million electronvolts million floating-point operations per second million instructions per second millipede millirad milliroentgen millisecond millisecond delay cap millisecond pulsar millisite millivolt millivoltmeter

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