turning diameter meaning in English

回旋直径
回转直径
最小转弯直径

Motor vehicles - minimum turning diameter - method of measurment
汽车最小转弯直径测定方法
Minimum turning diameter test
操舵力试验
Accuracy of machine tools and methods of test - specification for numerically controlled turning machines up to and including 1500 mm turning diameter
机床精度及试验方法.第28部分:车削直径小于1500mm
Carry out 15 port and starboard turning test with main engine at 100 % mcr , record its steady turning diameter , time and maximum heeling angle
在主机满负荷的情况下作左及右15回转试验，记录回转直径、时间及最大横倾角。