词汇	coal-tar base
释义	coal-tar base 煤焦油基
随便看	relative field drop relative field strength relative figures relative file relative file organization relative files relative film speed relative firmness relative fishing power relative fitness relative fitness value relative fixed costs relative fixed expense relative fixed position relative flammability index relative flexibility relative flow relative flow coefficient relative flowering intensity relative flow factor relative flowing pressure relative flow rate relative flow value relative fluctuation relative fluctua-tion