Currently, Canada is the only active exporter of egg products to the United States.
当前，加拿大是唯一对美国出口蛋制品的国家。
Vesuvius isn't the only active volcano threatening this densely-populated area.
维苏威火山并不是威胁这个人口稠密地区的唯一活火山。
But the big finding is that the cell nucleus has two compartments-and genes are only active in one.
研究者们的另一重大发现是，细胞核中存在两个间隔区域，而其中只有一个区域的基因是活跃的。
In the practice of psychological counseling, there are not only active clients but also passive clients.
在心理咨询实践中，既有主动来访者，也有被动来访者。
I was working with the only active client for the group, a private technology company that engaged our bank to sell itself.
当时我负责部门唯一一位活跃的客户，这是一家私人高科技公司，正在通过我们银行对外出售。
The only active volcano on the European mainland, Vesuvius has erupted frequently since Pompeii and Herculaneum were buried by it in a. d. 79.
维苏威火山是欧洲大陆唯一的活火山，自从公元79年庞贝和赫库兰尼姆被它埋没以来，它一直频繁爆发。
Range of motion and Knee Society scores were also similar, although our average range of motion suffered slightly as only active flexion was recorded.
活动度和膝关节协会评分相似，虽然我们的平均活动度受到轻微影响，但是有积极屈曲的记录。
Note that this utility is only active when you are downloading files, and that only files associated with the file that you are downloading are uploaded.
注意这个工具只有在你正在下载的时候才是激活的，并且只有你正在下载的文件才会被上传。
The daemon sets up this Shared memory upon initialization and ACTS as a garbage collector thereafter, helping to ensure that only active processes remain registered.
守护进程在初始化时设置将这个共享内存并在其后扮演垃圾收集器的角色以确保只有活动进程保持注册。
Unlike naturally occurring genes which are generally only active at certain times and in certain cells, transgenes are usually active the whole time and in all cells.
自然产生的基因通常在某些时候活跃也只有在特定的细胞活跃，转基因则通常全部时间和在所有细胞中都活跃。
One of the things that may make this drug so effective, Professor Patterson said, is that it will be "only active in the tumour, and not cause damage to normal tissue".
可能使这种药物如此有效的事情之一，帕特森教授说，这将是“只在肿瘤有效，并不会造成对正常组织损伤”。
Meanwhile, the research also shows that a system with the active control combined with passive control is better than those systems with only active or passive control.
同时，研究表明：主、被动控制技术相结合的控制系统的性能比只有主动控制或者只有被动控制的控制系统要好。
Caffeine can also make workers more panicky, although regular users build up tolerance to such anxiety, he says. But caffeine's not the only active chemical in hot drinks.
他说，咖啡因也可以使员工恐慌不安，尽管经常饮用者能够忍受这种焦虑，但咖啡因并不是热饮中惟一的活性化学物质。
This interaction can not only active classroom atmosphere, can also close the relationship between teachers and students, make English learning with the milk of human kindness.
这样的互动不但可以活跃课堂气氛，也可以拉近师生间的关系，使英语学习变得有人情味。
New York Yankees relief pitcher Mariano Rivera says every player should wear it. He is the only active player who still has the right to wear the number forty two to every game.
纽约美国佬队的替补投手玛利亚瑞维拉说，美国球手都应该穿上那个号的球衣，他是目前唯一可以每一场比赛都可以穿四十二号球衣的积极球员。
The only active ingredient in the spray is caffeine, which can naturally enter the human body through the skin by passing through cell membranes as it is very similar to nicotine in structure.
咖啡因是能量喷雾里唯一的活性组分，和尼古丁分子结构类似，它可以穿过表皮细胞膜直接进入人体。
Thee only active ingredient in the spray is caffeine, which can naturally enter the human body through the skin by passing through cell membranes as it is very similar to nicotine in structure.
咖啡因是能量喷雾里唯一的活性组分，和尼古丁分子结构类似，它可以穿过表皮细胞膜直接进入人体。 。
In China, for example, only 20% of the boys are active enough, compared to 11% of the girls.
例如，在中国，只有20%的男孩足够活跃，而女孩的这一比例为11%。
Active reading includes not only asking notes, but also speaking aloud and asking questions about the material that they are reading.
主动阅读不仅包括做笔记，还包括大声朗读和对所读材料提出问题。
The victim's promise in a narrow sense only means the consent of victim which exists as a justificative active in criminal law.
狭义的被害人的承诺则仅指作为刑法中的正当化行为而存在的被害人的同意。
Notice that in each configuration, there is only one active server with a workload on it.
注意，在每种配置中，都仅有一个活动服务器带有工作负载。
The solution ensures that messages are sent to only those instances that have active message consumer applications.
这个解决方案确保消息只被发送到拥有活动消息使用方应用程序的那些实例。
Although all the leading J2EE containers provide a mechanism to configure multiple realms, only one can be active at a time.
尽管所有优秀的J2EE容器提供了配置多个域的机制，但是一次只能有一个域是活动的。
Therefore, only one storage area is active at a time and the remaining ones are inactive.
因此，每次只有一个存储区域是活动的，其他存储区域不活动。
This scenario may explain why only 10% of active galaxies have radio jets, and how active galaxies evolve over time.
这种假设或许可以解释为什么活跃星系中只有10%存在喷流，以及它们如何持续演变。
The default behavior is that only one me is active on one cluster member and will only become active on the other cluster member if the first one fails (see Figure 3 above).
缺省行为在于，仅有一个ME在一个集群成员上是活动的，并且仅当第一个集群成员失败时才会在另一个集群成员上变为活动的(请参见上面的图3)。
The discovery, published in the latest issue of Science, counters the traditional view that, in order to conserve energy, these animals were active only by day, leaving the night to small mammals.
这项与传统观点截然不同的发现刊登在最近一期的《科学》杂志上——传统的观点认为，为了保存能量，肉食恐龙只在白天活动，而把夜晚留给了那些小型的哺乳动物。
The discovery, published in the latest issue of Science, counters the traditional view that, in order to conserve energy, these animals were active only by day, leaving the night to small mammals.
这项与传统观点截然不同的发现刊登在最近一期的《科学》杂志上——传统的观点认为，为了保存能量，肉食恐龙只在白天活动，而把夜晚留给了那些小型的哺乳动物。
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