俄罗斯邮政部门表示：“造成邮件丢失的具体原因通常是某些由外部环境带来的不可抗力，诸如自然灾害、交通及其他方面的意外事故等。”
"The loss of mail usually happens because of force majeure circumstances, such as natural disasters, traffic and other accidents," Russian Post told Reuters via E-mail.
当新型流感病毒进入到环境中以后，人类对它们没有任何自然抵抗力。
When new influenza viruses are introduced into the environment, humans do not have any natural immunity to protect against them.
艾滋病病毒对外界环境的抵抗力较弱，离开人体后，常温下只可生存数小时至数天。
HIV resistance to the outside environment is weak, leaving the body, the normal temperature can only survive a few hours to several days.
俄罗斯邮政部门表示：“造成邮件丢失的具体原因通常是某些由外部环境带来的不可抗力，诸如自然灾害、交通及其他方面的意外事故等。”
"The loss of mail usually happens because of force majeure circumstances, such as natural disasters, traffic and other accidents," Russian Post told Reuters via email.
分析了腐蚀环境对结构抗力的影响、抗力衰减模型、地震危险性、地震对结构的作用。
Influence of corrosive environment on structural resistance, resistance decrease model, seismic risk and seismic effect on structures are analyzed.
环境适应能力强，可以抗机械损伤，对流体净水压力有很好的抵抗力，同时对细菌、霉菌和化学腐蚀等具有很强的抵抗能力。
Easily ADAPTS itself to the environment. Good resistance upon mechanical damage. Good resistance to the liquid pressure. Strong resistance to bacterium, mildew and other chemical corrosion.
究其原因是现代生产工艺限制了猪群的某些行为习性，使猪的抗逆性、抵抗力和免疫力下降，造成对环境的要求越来越严。
The reason is that the modern production technics limit some behavior habits and decrease the resistance and immunity, so the require for environment become more and more severe.
目的：研究离体环境下人体颞下颌关节盘的抗力表现。
Objective: To study the appearance of the cadaver temporomandibular joint (TMJ) discs under confining indentation.
虾红素活颜抗皱精华液帮助我的肌肤增加对紫外线和环境的抵抗力。
ASTERNITY helps to build up my skin's tolerance toward UV and harsh weather.
但是由于外界环境等因素的影响，桥梁结构不可避免地出现损伤积累和抗力衰减。
Inevitably, the bridge structure was damaged and its resistance was attenuated duo to the destroy effect of environment.
保护好环境，不给致病因子兴风作浪的机会，同时，唤醒我们自身的抵抗力，而不是一味借助药物与疫苗，才是上策。
Protect the environment, do not give agents the opportunity to stir up trouble at the same time, the resistance of our own wake-up call, not just with drugs and vaccines, is the best policy.
该种病毒对年轻人危害更大，专家认为报告，老年人受害程度稍轻些，也许是因为他们多年来不断暴露在有类似病毒的环境中产生一定的免疫抵抗力。
The virus is hitting young people harder. Experts believe older people are suffering from it less, perhaps because they have a bit of immunity from exposure over the years to somewhat similar viruses.
山东樱花对环境的抵抗力让人‘叹为观止’。
The resistance of Shandong Sakura on environment people 'as the acme of perfection'.
科学证明这样的环境已经引发癌症多发，首先受害者是抵抗力较弱的孕妇，幼儿和老人。
Science proves that such polluted environment will lead to cancers. The most possible victims are pregnant women, children and old people who are of weak immune systems.
科学证明这样的环境已经引发癌症多发，首先受害者是抵抗力较弱的孕妇，幼儿和老人。
Science proves that such polluted environment will lead to cancers. The most possible victims are pregnant women, children and old people who are of weak immune systems.
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