产犊间隔
Calving season and milk yield were the main factors influencing calving interval.───产犊季节和产奶量是影响产犊间隔主要因素。
In order to investigate factors influencing calving interval of Holstein in Xinjiang area.───探讨各因素对新疆地区荷斯坦奶牛产犊间隔的影响。
The effects on calving interval were analyzed by SAS8. 1 GLM.───采用SAS8.1软件对影响产犊间隔因素进行最小二乘方差分析。
Effect of different parities on calving interval was significant (P05), the calving interval increased with the parity increased;───不同胎次对产犊间隔有显著影响（P0.05），产犊间隔随胎次增加有延长的趋势；
Investigation on calving interval and body condition of Qinhai plateau Yak───青海高原型牦牛产犊间隔及体况调查
The Extension of Calving Interval Decreases the Farm Profit───产犊间隔延长导致牛场利润降低
class interval───[统计]组距，标度分组间隔
closed interval───[数]闭区间
compound interval───复音程
confidence interval───[统计]置信区间，可靠区间
class intervals───[统计]组距，标度分组间隔
closed intervals───闭合区间
contour interval───等高线间距，等高线间隔
time interval───[天]时间间隔
compound intervals───复音程