These numerous examples of cross-reactions raise another question: why does Bet v 1 cause an allergy to the Mal d 1 protein but not the other way around?
这么多交叉反应的例子提出了另一个问题：为什么Betv1会导致对Mald 1蛋白质的过敏，反过来Mal d 1却不会导致Bet v 1过敏？
In the United States the customary voltage for household use has become 110-120 V since it was discovered that higher voltages could cause fatal accidents.
美国通常的家用电压是110-120伏，因为人们发现，更高的电压会造成致命的事故。
The bending deformation of V-shape composite insulator string under strong wind may cause the risk of ball head falling off and string falling apart.
型复合绝缘子串在大风作用力下受到弯曲变形，有球头脱落造成掉串的风险。
The bending deformation of V-shape composite insulator string under strong wind may cause the risk of ball head falling off and string falling apart.
型复合绝缘子串在大风作用力下受到弯曲变形，有球头脱落造成掉串的风险。
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