8、有效期：有效期的控制永远是食品物料控制质量的重要方法之一。的翻译：8, period of validity: validity of the control will always be quality one of the important methods of food material. 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

8, period: the period of control is always important food material quality control methods.

8, period of validity: validity of the control will always be quality one of the important methods of food material.

8th, Term of validity: The term of validity control forever is one of food material control quality important methods.

Validity period: 8 * , the food material control quality control is always one of the most important means.

8, period of validity: validity of the control will always be quality one of the important methods of food material.