TRSV 颗粒可以在饲养过程中通过背侧和腹侧下腺分泌物释放到植物中。
TRSV particles can be liberated into the plant during feeding by the dorsal and subventral gland secretions.
杯状细胞的粘液颗粒主要是中性粘多糖，气管腺的粘液颗粒为酸性粘多糖和中性粘多糖。
The mucous granules in the goblet cells mainly contained the neutral mucopolysaccharides, and the granules in the glandular cells the acid mucopolysaccharides and the neutral mucopolysaccharides.
颌下腺属混合腺，以混合性腺泡为主，有少量浆液性腺泡和黏液性腺泡，有闰管、颗粒曲管和分泌管；
The submandibular gland, which is a mixed gland containing more mixed acinus than serous acinus and mucous acinus, contains intercalated duct, GCT, and secretory duct.
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