The spruce community is not substantially affected by either the presence or absence of moose.
无论驼鹿的存在与否，云杉群落都不会受到实质性的影响。
For one thing, the presence or absence of moisture is affected by the special qualities of the urban surface.
一方面，湿气的存在与否受到城市表面特殊性质的影响。
The presence or absence of those chemicals was the input.
是否存在这些化学药品的状态就是输入。
A pathologist should only comment upon the presence or absence of inflammation.
病理科医生只需要注明有或无炎症就行了。
The presence or absence of other types of health problems is not mentioned in the study.
该研究没有提及其他类别的健康问题存在与否。
An HIV test reveals infection status by detecting the presence or absence of antibodies to HIV in the blood.
艾滋病毒检测通过检查血液中是否存在艾滋病毒抗体，显示感染状况。
The presence or absence of a particular attribute can be checked by placing one card on top of another.
可将一张卡片放在另一张上面来检查其特定属性的有无。
Doctors also take into account your physical exam, presence or absence of symptoms, and medical history.
医生还考虑到您的体检，存在或不存在的症状，病史。
The presence or absence of this common-mode voltage is used as an indication of cable connection status.
的存在或此共模电压的情况下是作为一种电缆连接状态指示。
That would not guarantee security against a search for the presence or absence of a particular name and address.
反数据库无法保障有关搜索某个名字或地址存在与否之操作的安全性。
Bend tests are performed to determine ductility and to determine the presence or absence of certain defects.
进行弯曲试验确定韧性和是否存在某些焊接缺陷。
While the simple presence or absence of a VAT emerges from the econometrics as of little importance to the degree of recovery.
来自计量经济学的增值税存在与否对经济的复苏程度基本不起什么作用。
ISO Schematron (Schematron) : Learn about this language for making assertions about the presence or absence of patterns in XML documents.
ISOSchematron (Schematron)：了解这种语言是如何进行XML文档内模型存在与否的断言的。
We investigated the influence (effect, impact) of temperature on the specific growth rat of yeast in the presence or absence of oxygen.
在有、无氧气存在的情况下，我们测定了培养温度对酵母比生长速率的影响。
When engaged the Link senses a presence or absence of signal at the input and depending on conditions, places the unit into standby mode.
当从事链接感官的业务或没有信号的输入和有关情况而定，进入待机模式的地方单位。
Only the ineducable tyro can fail to sense the presence or absence of wolves, or the fact that mountains have a secret opinion about them.
只有最不堪造就的新手，才感觉不到狼的存在与否，才不晓得大山对狼有着隐秘的看法。
For instance, psychotherapists (of whatever orientation) often discuss the presence or absence of this feeling process in a particular case.
举例来说，(任何取向的)心理咨询师经常讨论在某个案例中这种感觉进程的存在或不存在。
The presence or absence of freight traffic, the volume of freight traffic, and the nature of freight operations (e.g., overhead vs. local switching).
货车流量存在与否、货车流量的大小、货车运行的性质（如，高架道口或平交道口）。
The rates of non-union and avascular necrosis in the presence or absence of fragmentation were compared in both undisplaced and displaced groups.
比较有移位和无移位组有或无骨折片的患者骨不连和缺血性坏死发生率。
When these rocks break down into the grains that make up the sand on our beaches, their colour is mostly determined by the presence or absence of iron.
当岩石分解成为颗粒够成沙滩时，颜色则是由铁元素氧化物的存在与否决定的。
The system is based on the spread of the primary tumor (t), the extent of lymph node involvement (n), and the presence or absence of metastases (m).
系统包括三个部分：原发肿瘤的扩散程度(t)；淋巴结的转移程度(N)和是否有了其他器官的转移(M)。
The introduction of game theory, we discussed from a fundamental point of view of behavior choices presence or absence of legal liability and forms.
从应然和实然两个方面讨论自助游责任的有无，引入博弈理论，从行为选择的根本性角度分析法律责任的有无及形式。
A constructive engagement with spiritual and cultural practices addresses well-being and health beyond the presence or absence of disease and illness.
不论疾病存在否，积极参与致力于安宁与健康的精神和文化实践活动。
Results Colour ultrasound could show the size, appearance, presence or absence of nodules, internal echo, blood flow distribution of thyroid and so on.
结果表明彩超可清晰地显示甲状腺大小、形态、结节的有无，内部回声及血流分布等。
Over the past 18 months, a significant number of market highs and lows have been linked to the presence or absence of buyers from the former Soviet Union.
在过去的1年半当中，收藏市场重要数据的起起伏伏均跟前苏联买家出席与否有关。
Their idea is to represent the 0s and 1s of digital signals not using voltage levels as in conventional computers, but using the presence or absence of noise.
他们的想法是不像在传统计算中那样使用电压高低来代表0和1，而是使用噪音的有无。
When a method marked as conditional is called, the presence or absence of the specified preprocessing symbol determines whether the call is included or omitted.
当调用标记为条件的方法时，指定的预处理符号的存在或不存在决定是否包含或省略此调用。
When a method marked as conditional is called, the presence or absence of the specified preprocessing symbol determines whether the call is included or omitted.
当调用标记为条件的方法时，指定的预处理符号的存在或不存在决定是否包含或省略此调用。
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