HA1基因进化树显示出以很长的主干和很短的侧枝为特征.The results showed that the evolution of HA 1 represented a long trunk with short side branches.分析构建了两个氨基酸序列的系统进化树.Two phylogenetic trees were created from the alignments of the two amino acid ...
Obvious examples are potentiometers and tachogenerators to monitor the posit ion and speed of a shaft.反映转轴位置和速度的电位器与测速发电机是我们最熟悉的传感器的例子.The tracking precision is got by measuring the far - field facula posit.通过测量回馈光远场光斑的位...