既可垂直传播，也可水平传播。
水平传播人、猴类和其它动物事关重要。
Horizontal transmission to humans, monkeys, and other animals is important.
当下游传播无法满足需要，例如，当需要水平传播时。
When downstream propagation does not meet the requirements; for example, when horizontal propagation is required.
可通过空气水平传播，也可经蛋垂直传播。
The infection can be transmitted horizontally by aerosol, as well as vertically through eggs.
认为在当代社会，流行的传插过程以水平传播为主。
This paper firstly discusses the concept of fashion and its characteristics, and then analyse the fashion adoption process in the contemporary society.
还对在细水雾喷洒下聚合材料做成的厚燃料床上火焰的水平传播进行了试验。
Horizontal flame spread over thick fuel beds of polymeric material (PMMA) under water mist suppression has been investigated.
空气中增加的波能沿北半球水平传播，垂直上升到同温层然后下降到地球表面。
The increased wave energy in the air spreads both horizontally, around the Northern Hemisphere, and vertically, up into the stratosphere and down toward the earth's surface.
这些区别包括令牌附加的对象(线程、主题)、传播的方向(下游、水平)、以及使用它的目的(身份验证)。
Such differences include what the token is attached to (thread, subject), in which direction it is propagated (downstream, horizontal), and what it is used for (authentication).
这些大气波动携带的能量像声波那样在水平方向和垂直方向上进行传播。
The energy from these atmospheric waves, like the energy from a sound wave, propagates both horizontally and vertically.
非洲之角的国家正在提高其计划、协调和优化根除脊髓灰质炎战略的水平，以便切断脊髓灰质炎病毒的传播路线。
Countries in the Horn of Africa are increasing their level of planning, coordination and streamlining their polio eradication strategies to cut the corridor of transmission of the poliovirus.
在生成了令牌之后，按照水平或者下游的方向，为所有后续的调用对令牌进行维护和传播。
Once the token is generated, it is maintained and propagated for all subsequent calls, either horizontal or downstream.
传播还可能发生在不同的方向上：水平的或者下游。
Propagation can also happen in different directions: horizontal or downstream.
媒介控制的主要目标是通过降低传播水平来降低发病率和死亡率。
The principal objective of vector control is the reduction of malaria morbidity and mortality by reducing the levels of transmission.
博茨瓦纳能实现如此低的艾滋病毒母婴传播水平，可以称得上是非洲的一个成功典范。
Botswana is a great success story for Africa to reach this low level of infection among children born to HIV-positive women.
服务器端的一致性水平取决于如何在数据副本之间传播更新(这是改善吞吐量、提供可伸缩性的典型方式)。
The level of consistency on a server side depends on how updates are propagated between data replicas (which is the typical way to improve throughput and provide scalability).
为阻断野生脊灰病毒传播并使消灭脊灰的益处达到最佳水平，全球重点是。
To stop transmission of the wild poliovirus and optimize the benefits of polio eradication, the global priorities are.
这也是唯一可将疟疾传播率从很高水平降至接近零传播率的干预措施。
It is the only intervention that can reduce malaria transmission from very high levels to close to zero.
使用从孕妇背包得到的数据，研究人员报告在1998年到2006年间空气传播的水平下降了百分之50多。
Using data from the women’s backpacks, researchers reported that airborne levels dropped by more than 50 percent between 1998 and 2006.
使用从孕妇背包得到的数据，研究人员报告在1998年到2006年间空气传播的水平下降了百分之50多。
Using data from the women's backpacks, researchers reported that airborne levels dropped by more than 50 percent between 1998 and 2006.
贝瑟说，只有病毒是新型病毒，病情严重，其传播速度保持在较快水平上，才能宣布为进入爆发流行状态。
To be declared a pandemic, Besser said, the virus must be new, cause severe disease, and transmit easily enough to be sustained.
在很多地方，很多城市建立在“疟疾线”水平之上——意即可以传播疟疾的蚊子无法生存的水平线上。内罗毕就是个例子(肯尼亚首都：译者注)。
In many places cities have been built just above a so-called "malaria line", above which malaria-bearing mosquitoes cannot survive (Nairobi is one example).
根据生物学家对老鼠的实验研究，睾酮水平高可能是导致疾病传播的一个重要原因。
High levels of testosterone may be a key factor in spreading disease among mice, according to biologists.
他认为这种改变将保护美国食物资源不受可能存在的攻击问题，减少食物中毒的传播，提高农村地区的经济水平。
He says such changes would protect America's food sources from possible attack, reduce the spread of food poisoning and improve the economies of rural areas.
在这一阶段中，人们通常没有注意到他被感染了，但是高水平的病毒血症增加了每个行为传播HIV感染的风险。
During acute infection, persons are usually unaware they are infected, but high levels of viremia in this phase increase the per-act risk of transmitting HIV infection.
我省HIV感染率仍处于低水平，但在3类高危人群监测到了HIV感染者，危险因素广泛存在，应进一步采取有效预防措施控制艾滋病的传播。
The HIV infection situation was still in low level, but HIV infected people were found from 3 kinds of high risk population, so effective measures should be taken for HIVAIDS control and prevention.
我省HIV感染率仍处于低水平，但在3类高危人群监测到了HIV感染者，危险因素广泛存在，应进一步采取有效预防措施控制艾滋病的传播。
The HIV infection situation was still in low level, but HIV infected people were found from 3 kinds of high risk population, so effective measures should be taken for HIVAIDS control and prevention.
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