epithecium造句

例句与造句

1. Tips of the paraphyses are very tightly together at the surface of the hymenium and create a barrier; the epithecium.
2. A high osmotic pressure in the cells of the epithecium prevent marauding microfauna that would otherwise penetrate and feed on the rich protoplasm below.
3. But as Barr ( 1987 ) points out, the hamathecium in the Patellariaceae is composed of apically free paraphysoids that form a pseudoepithecium, whereas in the Hysteriaceae the hamathecium is composed of downward-growing pseudoparaphyses that, at maturity, become apically dissociated and may become darkened to form an epithecium.
4. It's difficult to find epithecium in a sentence. 用epithecium造句挺难的