The balance between two kinds of signals ensures an effective response to foreign antigens for host protection, while avoiding inappropriate reaction to self antigens.
二者的平衡使机体在避免对自身抗原产生不适当反应的同时，又能对外来抗原显示足够强的应答能力。
2
Results reducing reaction of the drug, avoiding delay the condition of a patient, reducing occurrence of the complication.
结果：减少了用药的反应，避免延误病情，减少了并发症的发生。
3
It is suggested that syncopic reaction could be reduced by improving the working condition for blood donation to prevent mental stress, avoiding empty stomach, fatigue, etc.