Rather, mucus tends to occur as ropy strands of secretion exuded from the mural bronchial mucus glands . 说得更恰当一点，粘液是壁状支气管粘液腺渗出的分泌物，呈胶粘体存在。
The alveoli are minute, saclike or pearshaped structures the walls of which consist of a single layer of epithelial cells . 腺泡为微小的囊状或豌豆形结构，泡壁为一层上皮细胞。
The alveoli are minute, saclike or pear-shaped structures, the walls of which consist of a single layer of epithelial cells . 腺泡为微小的囊状或豌豆形结构，泡壁为一层上皮细胞。
Nevertheless, it has been shown that side-chain planarity is important in conferring high adenyl cytokinin activity . 然而已经证明，对于高的腺苷细胞激动素活性，侧链的平面性很重要。
In dna, four different bases are found. two of these, adenine and guanine, are double-ring structures called purines . 在DNA中，有四种不同的基，其中的两个为腺嘌呤和鸟嘌呤，即称为嘌呤的双环结构。
In dna, four different bases are found. two of these, adenine and guanine, are double-ring structures called purines . 在DNA中，有四种不同的碱基，其中的两个为腺嘌呤和鸟嘌呤，即称为嘌呤的双环结构。
In the mammary gland are two main types of tissue: first the parenchyma or glandular tissue and, secondly, the stroma or supporting tissue . 乳腺有两种主要组织：第一是主质，即腺组织，第二是基质、即支持组织。
A malignant tumor originating in glandular tissue 腺癌起源于腺性组织的恶性肿瘤
Rules for inspection of frozen pork three glands for export 出口冻猪三腺检验规程
Many of them have lumens containing bluish mucin 很多腺体有含有兰色黏液的腺腔。
