基因是在有性繁殖中交换的微小生物信息。Genes are those tiny bits of biological information swapped in sexual reproduction.这个池子略微小些，比大多数的池子更挤。The pool is smallish and more crowded than most.由于它们是手工制作的，彼此都会有些微小的差异。As they're handmade, ea...
在腹板与下翼缘的施焊中使用小矩形挡板.Small rectangular backup bars were used to fabricate the web - bottom flange connection.发生紧急状况时,拉下翼弦.Pull the cord in case of emergency.在某些情况下, 翼尖还会发生气流分离.Even in some conditions, the airflow may separ...