nuchal
adj. 项的；颈背的
例句
The superior nuchal line is not always a reliable external anatomical mark.
上项线不是一个可靠的浅表解剖学标志。
Objective: To evaluate effect of nuchal cord on the delivery pattern.
目的：探讨脐带绕颈在评估分娩方式中的价值。
Objective To find suitable critical value of fetal nuchal translucency (NT) by ultrasonic testing.
目的通过超声检查寻找合适的胎儿颈项皮肤厚度（NT）临界值。
