total fecal nitrogen总: assemble; gather; put togeth ...粪: droppings; dung; excrement; ...氮: nitrogen内: inner; inside; within量: measure capacity下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:总粪氮,粪内总氮量，即可在微信中查询翻译
