醋酸钙杂质的存在使木糖溶液介稳区变窄，晶体生长速率加快。
The metastable zone is narrowed, and the crystal growth rate is increased in the presence of calcium acetate as an impurity.
植原体病原主要依靠吸食植物韧皮部的昆虫介体传播，如叶蝉、木虱等。
Primary vectors for transmitting phytoplasma are insects feeding on the sap of phloem, such as leafhopper, and psylla.
植原体病原主要依靠吸食植物韧皮部的昆虫介体传播，如叶蝉、木虱等。
Primary vectors for transmitting phytoplasma are insects feeding on the sap of phloem, such as leafhopper, and psylla.
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