两种蟹肝胰腺均由肝小管的单层柱状上皮构成，在光镜下可以区分出分泌细胞、吸收细胞、胚性细胞。
The hepatopancreas of the two crabs were built with simple columnar epithelia. Secreting, absorbing and embryonic cells could be distinguished.
介绍雷达吸波材料与吸波结构，以及电磁波吸收层的电性能设计方法，并探讨了单层和双层吸收层的设计。
Radar absorbing materials and structures and the electrical design method of the electromagnetic wave absorbing sheets are introduced.
应用推荐