However, the accompanying problems of resistance to the acaricides and the presence of chemical residues in meat and milk show the need for alternative control methods.
然而，随着蜱抗药性以及畜产品的药物残留等问题的出现，寻找新的抗蜱方法就显得尤为重要。
2
The problem is that most do not know how to measure or define cleanliness nor can they recognize process problems related to residues.
但是问题在于，大部分人不懂的如何测量或定义清洁度，他们也无法识别与残留有关的工艺问题。
3
For the improvement of the standard system of rice noodles, the main problems in the present three rice noodle standards, such as contaminant residues and food additives, were investigated.