In splitting wood,don't try to go against the grain. 劈木柴时,要顺着木纹劈。
During flight back two black and white cross striations clearly visible. 飞行时背部两道黑色和白色的横纹清晰可见。
The myocardial fibers are beginning to lose cross striations and the nuclei are not clearly visible in most of the cells seen here. 在大多数可见细胞中,心肌纤维的横纹丢失,细胞核模糊。