给予植物抗虫性的物质包括无机物，初始、中间代谢物和次生物质。
Substances conveying plant resistance to insects include inorganics, primary and intermediary metabolites and secondary substances.
目前已知的防御化合物主要包括植物次生代谢物质、昆虫消化酶(蛋白)抑制剂、蛋白酶、凝集素、氨基酸脱氨酶和氧化酶。
Major known defense chemicals include plant secondary metabolites, protein inhibitors of insect digestive enzymes, proteases, lectins, amino acid deaminases and oxidases.
乳酸菌的主要风味代谢物质包括丁二酮，乙醛以及各种氨基酸。
The major flavor substances Lactic acid bacteria produced include the buttermilk aroma butanedione, the yoghurt flavor acetaldehyde and the amino acid.
什么是生物质？生物质是地球上最广泛存在的物质，它包括所有动物、植物和微生物以及由这些有生命物质派生、排泄和代谢的许多有机质。
Biomass is the most widespread material, which includes all animals, plants and micro-organisms and substances derived from these are life, excretion and metabolism of many organic matter.
什么是生物质？生物质是地球上最广泛存在的物质，它包括所有动物、植物和微生物以及由这些有生命物质派生、排泄和代谢的许多有机质。
Biomass is the most widespread material, which includes all animals, plants and micro-organisms and substances derived from these are life, excretion and metabolism of many organic matter.
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