When multiple etiologies in some diseases occur at the same time, we should differentiate of diseases and syndrome according to the incidence, primary and secondary successively and mutual relations.

Due to design, construction, geological condition as well as tunnel structures, management work is required for built expressway tunnels and such tunnels in which diseases occur require reinforcement.

由于设计、施工、地质条件和隧道结构本身的原因，高速公路隧道在建成后需要进行管理，产生病害的隧道需要进行加固；

Whereas the farmland protection forest pests and diseases occur yearly, which seriously endanger the normal growth of crops, resulting in ecological shelter lost its function.

但是农田防护林病虫害连年发生，严重危害了农作物的正常生长，致使防护林失去其应有的生态作用。

Conclusion It's a safe and effective method to cure Rh haemolysis disease by Rh positive blood exchanging when emergent diseases occur.

结论在病情紧急时，用Rh阳性血换血治疗，是一项安全有效的替代措施。

Many hinges in human body are the regions where the diseases occur easily is similar to there are many traffic accidents in main roads.

像许多交通要道容易出现交通事故一样，人体的许多枢纽部位也是疾患多发区。

In the large-scale epidemic diseases occur frequently day, people of various countries public healthy safety have accepted the enormous threat.

在大规模流行性疾病频频发生的今天，各国人民的公共健康安全受到了巨大的威胁。

Nearly half of all cardiovascular disease events occur in people without elevated blood cholesterol or lipid levels.

几乎一半患有心血管疾病的人群血浆胆固醇及血脂水平并无升高。

My experience then – and since – has reinforced my sense that events occur within a continuum.

我在当时以及之后的经验加强了我的感觉：大事的发生具有连续性。

Rectifying tower has one pivotal function in the chemical production, where abnormal events occur from time to time.

精馏塔在化工生产中有着举足轻重的作用，故障也时有发生。

This shall apply even if the party affected is already in default of performance when these events occur.

即使受到影响一方在事件发生时已经存在不履行的情况，仍应适用前述规定。

In recent years, with the rapid development of modern society, all kinds of public emergency events occur frequently.

近年来，随着现代社会的高速发展。自然灾害、事故灾难、公共卫生和社会安全等领域的突发公共事件频繁发生。

Alerts are notifications in e-mail when certain events occur in your team project.

警报是团队项目中发生某些事件时，通过电子邮件发送的通知。

Abrupt strong current events occur either with multiple velocity peaks or with a single peak.

突发性强流事件既可呈现多峰型，也可呈单峰型。

Set the process attribute to "simultaneous" to have all events occur at the same time.

将process属性设为“simultaneous”将使所有事件同时发生。

Events occur each time the character repeats.

事件也都重复发生。

CAI attempts to call the appropriate method in this interface when these events occur.

当发生这些事件时，CAI将尝试在这个接口中调用相应的方法。

The component can use this interface to perform additional operations when such events occur.

当发生这类事件时，组件可以使用这个接口执行额外的操作。

This handy mnemonic may help us remember when the two events occur.

这个简便的记忆法也许可以帮助我们记得这两个运动会何时举行。

On the external level, natural events occur when the external properties get provoked.

外在层次上，当外元素被激发时，就会发生自然界的事件。

You can select to receive an alert when certain events occur.

您可以选择当发生某些事件时接收警报。

Which, due to product liability to their users damaging events occur?

其中，因产品责任而给其使用者带来损害的事件时有发生。