Three years later, a parasitologist at Florida Museum of Natural History in Gainesville called David L. Reed showed that differences in the DNA of lice can tell us much about their hosts.
3年后，来自于盖恩斯维尔的佛罗里达州国家历史博物馆的寄生物学家大卫·l·里德指出，虱子基因的差异会告诉我们许多有关宿主的信息。
The rollers are carried by an L - shaped lever, fixed to a horizontal shaft, which also carries short arms to which the reed and gripper guides are fixed.
转子装在l形杆上，l形杆固定在水平轴上。在水平轴上还装有短臂，钢筘和导梭片就装在短臂上。
The rollers are carried by an L - shaped lever, fixed to a horizontal shaft, which also carries short arms to which the reed and gripper guides are fixed.
转子装在l形杆上，l形杆固定在水平轴上。在水平轴上还装有短臂，钢筘和导梭片就装在短臂上。
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