Laboratory tests by ELISA method of serum samples for this and 50 other contact were found to be negative.
采用ELISA法对该人及50名其他接触者的血清样本进行的实验室检测均呈阴性。
A close relationship inevitably generates both positive and negative emotions. Where there is contact, there is friction.
亲密的关系不可避免会同时产生正面的和负面的情绪。有接触的地方就会有磨擦。
Please contact us before leaving any negative or neutral feedback. We will work with you to solve any problems.
请联系我们并留下任何负面的或中性的信息。我们将与您一起解决任何问题。
Parents and teachers should supervise them as soon as children's behavior with a bad sign, and try to make them contact with the wonderful things, keep them away from negative power of their idol.
家长和老师该在孩子的行为有不好的征兆的时候就多加监督，让他们多接触美好的事物，让他们不受偶像的负能量影响。
On the one hand, Ethnic contact theory suggest that there a negative correlation, that is, the more personal contact, the less conflict.
一方面，民族接触理论认为，在民族接触与冲突之间存在着某种负相关，即个人接触越多，冲突就越少；
It is known that when CB1 comes into contact with cannabis it has an impact on bone regeneration, but until now it was not clear whether the drug had a positive or negative effect.
已经知道CB1和大麻接触后将对骨再生产生影响，但尚未清楚它是正效应还是负效应。
Please contact us before leaving any negative or neutral feedback.
请联系我们并留下任何负面的或中性的信息。
USE: Electric- contact pressure gauges are used for measuring positive and negative pressure of liquids and gases which are nor corrosive to copper and copper alloy and not explosive and crystal.
电接点压力表适用于测量对铜及铜合金无腐蚀、无爆炸危险、非结晶的各种液体、气体等介质的压力。
The utility model relates to a non-contact on-line monitor for air leakage and negative pressure fault in a high-voltage vacuum switch.
本实用新型是一种非接触式的在线监测高压真空开关的漏气及负压故障的装置。
Therefore, the influence of alloy refine and modify is a result decided by both positive effects of delay of dendrite contact and negative effects of increase viscous force with solid-phase increased.
因此，细化变质对合金流动性的影响是延迟枝晶搭接的正面效应与增加固相分散度使粘滞力增加的负面效应相互作用的结果。
Therefore, parents should always pay attention to children in contact with the outside environment to stop the negative factors from outside the impact on children.
因此，家长们要时刻注意孩子们所接触的外界环境，尽量阻挡来自外界不良因素对孩子们的影响。
Therefore, parents should always pay attention to children in contact with the outside environment to stop the negative factors from outside the impact on children.
因此，家长们要时刻注意孩子们所接触的外界环境，尽量阻挡来自外界不良因素对孩子们的影响。
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