apex distance

英 [ˈeɪpeks ˈdɪstəns]

美 [ˈeɪpeks ˈdɪstəns]

顶距；分度锥母线距离

Of the moderate group: the above indexes, except for the apex decentration distance significantly decreased at12 months and more evidently at18 months.
中度组，除12个月时锥顶偏心距离、角膜散光值较配戴前无显著变化外，其他各项参数亦有明显降低，18个月时下降更为明显；
Objective To evaluate the therapeutic effects of dynamic hip screw ( DHS) on intertrochanteric fractures and discuss the relationship between tip apex distance ( TAD) and cutout of the screw.
目的评价动力髋螺钉（dynamichipscrew，DHS）治疗股骨转子间骨折临床效果，探讨头钉尖顶距（TAD）与头钉拔出的关系。
Methods To pick out 300 chest films of apex pulmonis companion shadow whose columna vertebralis lung, heart, and diaphragm is normal, the upright distance from the most inferior spot of the first rib or second rib to the lung were measured.
方法选出脊柱、胸廓无畸形，两肺清晰，心膈正常有肺尖伴影后前位X线胸片300例，取第1或2肋骨内缘最内凹点至伴影肺内的垂直距离。