理论上，我不分昼夜随叫随到。
这是理论上存在的可能性。
从理论上讲，这些机器应能用十年以上。
In theory, these machines should last for ten years or more.
在理论上，买方可以要求卖方进行一次产品检测。
In theory, the buyer could ask the seller to have a test carried out.
这在理论上肯定有风险，但在实践中却很少出问题。
This is certainly a theoretical risk but in practice there is seldom a problem.
理论上，在贸易领域，运输成本并不重要。
Theoretically, in the world of trade, shipping costs do not matter.
至少在理论上，问题在于我们要做太多选择。
In theory, at least, the problem is that there are very many choices to make.
理论上，女孩可以不接受她父母已为自己选择的配偶。
In theory, a girl may veto the spouse her parents have chosen.
在互联网时代，至少在理论上，这个比例可以大大降低。
In the internet age, at least in theory, this fraction can be much reduced.
理论上，他根据社会和技术变量之间的关系来定义“技术”。
Theoretically he defines "technology" in terms of relationships between social and technical variables.
从理论上讲，互动广告可以吸引观众，而30秒的广告不行。
In the theory, interactive advertising can engage viewers in a way that 30-second spots do not.
从理论上讲，人们应该做出“健康的选择”，避免暴饮暴食。
Theoretically, people ought to make "healthy choices" and avoid overeating.
从理论上讲，您认为每件文物都具有潜在的科学价值可能是正确的。
Theoretically, you may be correct in claiming that every artifact has potential scientific value.
理论上，交互式广告能够以一种30秒广告做不到的方式来吸引观众。
In theory, interactive advertising can engage viewers in a way that 30-second spots do not.
正如你可能知道的，从理论上讲，原色是所有其他颜色形成的基础色。
As you probably know, primary colors are, theoretically speaking, the basic colors from which all other colors can be made.
每个系统都有漏洞，理论上，具备相关知识的小偷就可以对其加以利用。
Every system has vulnerabilities that a knowledgeable thief could theoretically exploit.
瓦伦坦泰因说，理论上，这可以创造一个足够高的温度来产生过热蒸汽。
In theory, says Valentijn, this can create a high enough temperature to generate superheated steam.
每个系统都有漏洞，如果小偷具备相关知识，理论上就可以对其加以利用。
Every one of them has vulnerabilities that a knowledgeable thief could theoretically exploit.
“理论上，”瓦伦丁说，“这可以产生一个足够高的温度来产生过热的蒸汽。”
"In theory," says Valentine, "this can create a high enough temperature to generate superheated steam."
从理论上讲，这种对流会把大陆板块带到一起，好像把它们放在传送带上一样。
Theoretically, this convection would carry the continental plates along as though they were on a conveyor belt.
理论上，主要的家庭安全问题之一，是特定系统是否易受到阻碍，完全无法运作。
One of the main theoretical home-security concerns is whether or not a given system is vulnerable to being blocked from working altogether.
理论上，你需要核心里的熔化铁来产生它，但是水星很小，它的核心凝固还要很久。
In theory, you need molten iron in the core to generate one, but Mercury is so small, its core should have long since solidified.
理论上，我们可以通过研究一个名为南极-艾特肯盆地的巨大陨石坑来做到这一点。
We could do this in theory by studying an enormous impact crater, known as the South Pole-Aitken Basin.
从理论上讲，细菌可能是在火星的早期发展起来的，其中一些是由陨石带到地球的。
It is theoretically possible that bacteria developed on Mars early in its history and that some were carried to Earth by a meteorite.
四种基本力（万有引力、电磁力、强核力和弱核力）中的每一种都有一个理论上的旋钮。
Each of the four fundamental forces (gravity, electromagnetism, and the strong and weak nuclear forces) has a kind of theoretical knob.
理论上，阿根廷、加拿大、智利、中国、俄罗斯和英国可以利用风能来满足所有的能源需求。
In theory, Argentina, Canada, Chile, China, Russia, and the United Kingdom could use wind to meet all of their energy needs.
其他替代方案在理论上很有吸引力，但在实践中要么不切实际，要么只能提供微不足道的改进。
The other alternatives are attractive in theory but in practice are either impractical or offer only marginal improvements.
从理论上讲，把非洲猎豹引进美国西部，可以让叉角羚重新回到生物学家所说的自然进化轨道上。
Importing African cheetahs to the western United States could, in theory, put the pronghorn back onto its natural evolutionary trajectory according to these biologists.
相反，合租公寓可能很便宜，而且总会有人可以一起聊天，一起出去，并且理论上还可以一起分担家务。
Conversely, flat sharing can be very cheap and there will always be someone to talk to and go out with, and the chores, in theory, can be shared.
这个团队把重点放在运动员身上，因为从理论上讲，运动员是孩子们形成积极健康生活方式的最佳榜样。
The team focused on athletes since they are theoretically the best role models for active, healthy lifestyles for children.
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