English translation for "number of heads of screws"

螺丝头数

Similar Words：

"number of grains on individual head" English translation, "number of grains per ear" English translation, "number of grains per head" English translation, "number of growing days" English translation, "number of head" English translation, "number of hill" English translation, "number of hills per unit area" English translation, "number of hits by user agent" English translation, "number of holds" English translation, "number of holes" English translation