The use of commercial devices for reducing radiofrequency field exposure has not been shown to be effective.
使用商业装置来降低射频场接触量，并无证据证明是有效的。
Relationship between electromagnetic field exposure and dementia: a population-based case-control study.
电磁场暴露与痴呆：基于人群的病例对照研究。
Conclusions Radical resection of low rectal cancer with elevating perineum method would significantly improve operative field exposure.
目的探讨改善显露低位直肠癌根治切除术中的手术视野的方法。
The site-selecting principles and design methods of field exposure station on coastal reinforced concrete structures are introduced in this paper.
介绍沿海混凝土结构现场暴露试验站的选址原则和设计方法，并依此详细介绍某沿海现场暴露试验站的设计。
Results of the study show a significant association between power-frequency magnetic field exposure and reduced disease-free survival for children with acute lymphoblastic leukemia.
研究结果显示儿童急性淋巴性白血病的生存机会的减少与工频电磁场辐照有很强的关联。
The picture is a digital composite, a separate longer exposure added to an eclipse frame to capture the surrounding star field.
这幅图片是经过数码合成的，由一幅分开的长曝光照片和拍摄下周围星域的月食照片组成。
Photos are unavoidably limited by the trade-off between depth of field, exposure time and image noise.
你必须在景深、曝光时间和噪点之间做出权衡。
Earth has avoided such an event since in part because of Jupiter's gravitational field which limits our exposure to space rocks.
地球之所以避开了这样的危险，是因为木星引力场的作用，使得地球并不是完全“暴露”在太空岩石的危险之中。
If you have time and if there's a way to volunteer in a capacity where you can use your skills and expertise, volunteering is another way to gain exposure as an expert in your career field.
如果你有时间，并且有一个志愿者的空位能够让你展示你的技能和专业知识，那么这会是让你在你的领域作为专家曝光的另一种方法。
Captured in this 60 second time exposure made on April 14, a yellow-tinged Mars and M44 are near the center of the field, seemingly just beyond the reach of a pine tree.
这张曝光60秒的照片摄于4月14日，微黄色调的火星和M 44接近视场的中心，看似就在松树的顶端之外。
This limits the power of the electromagnetic field emitted near your ear and the duration of your exposure.
这会减少电磁场在你耳边发出的能量和缩短你被辐射的时间。
A full moon can be a savior for reducing the required exposure time and allowing for extended depth of field, while a moonless night greatly increases star visibility.
满月可以帮你减少曝光时间、扩大景深，而月光暗淡的夜晚增加了星星的可见度。
In a validation study, the exposure misclassification was analyzed by using field measures as gold-standard that were collected independently from the model used for field strength calculation.
在一项已经证实的研究中，通过收集不同个体的数据进行电磁场强度计算可作为分析辐射暴露分级的金标准。
Conclusion Exposure to chlorinated water may be a risk factor for bladder cancer in Chongqing. More epidemiology studies on the field would be carried out.
结论重庆地区饮水氯消毒暴露可能是膀胱癌发生的危险因素，应当重视该领域的流行病学研究。
Based on the field monitoring , investigation and parsing of pollutants sources, a mathematic model was used to calculate the exposure to pollutants from coal burning.
在现场监测、污染源解析的基础上，应用修正后的高斯扩散模型，计算出燃煤污染物暴露浓度。
A scan field distortion correction function fore-beam exposure system is deduced on the basis of the plane field alternation principle, and a simulative fruit is given by computer.
根据平面区域变换的原理，导出电子束曝光机扫描场的畸变校正函数，并给出计算机模拟校正的结果。
The dynamic object should arrive at the view field of the collimator in the camera exposure time to simulate infinity object.
在相机拍照曝光时间内，尺形分辨率板运动至平行光管的视场内，以模拟无限远动态目标。
Through the research of nonlinear phenomenon in the dense particles field, the understand of the study on characters of nonlinear exposure in in-line holography for particle field was all-round.
这使对粒子场激光同轴全息非线性曝光特性有了更加深入的认识。
AIM: To investigate the relationship between electromagnetic field (EMF) exposure and dementia based on the population survey.
目的：通过人群调查探讨电磁场暴露与痴呆的关系。
Once you find the right exposure, you can adjust the Settings to get the right amount of depth of field and motion in the image.
一旦你找到了最佳曝光组合，你就可以通过调整来得到最佳的景深以及影像固化。
As a new grad, you may be more likely to accept a lower-than-average salary in order to gain experience and exposure to clients in your field.
作为一个新人，你可以接受低于平均水平的工资来积累经验，向客户充分地展示自己。
This paper reports the principles and results of axisymmetric temperature field measurements by the double exposure holographic interferometry method.
本文报导了漫射光照明全息干涉度量二次曝光法测量轴对称温度场的原理和实验结果。
The invention discloses a method for accurately controlling exposure time by utilizing pulse laser, which is applied to the technical field of micromachining.
本发明是一种利用脉冲激光精确控制曝光时间的方法，用于微细加工技术领域。
As a new grad, you may be more likely to accept a lower-than-average salary in order to gain experience and exposure to clients in your field.
作为一个新人，你可以接受低于平均水平的工资来积累文章，向客户充分地展示自己。
As an important photoelectric exposure, field emission properties of III nitride semiconductors have attracted widely interestingness of researchers.
而II I族氮化物半导体场发射研究作为其光电特性的重要研究方向，引起了人们广泛关注。
This paper Outlines many technical control methods, such as exposure, exposure measurement, lighting and depth of field in advertising photography.
本文论述了广告摄影摄制过程中曝光、测光、布光以及景深等方面的控制要领。
A new optical method of temperature field measure using image plane hologram with two times of exposure is presented.
提出了一种新的测量温度场的光学方法，即像面全息二次曝光法。
RESULTS: Exposure time had more effects on the mice learning memory when the product of magnetic field intensity and magnetic exposure time was equal.
结果：恒定磁场强度与磁场暴露时间的乘积相等时，大剂量、短时间暴露比小剂量、长时间暴露对小鼠学习记忆能力的影响要小；
Methods Retrospective epidemiological cohort study and field survey were conducted for dermatological examination, occupational hygiene and occupational exposure history for 2 876 workers.
方法采用现况调查和回顾性队列研究方法，对2 876名队列成员进行皮肤科检查和现场职业卫生学及个人职业史的调查。
To grasp the level and the trend of medical exposure in the field of clinical nuclear medicine in Shanghai.
掌握上海市临床核医学诊断与治疗的医疗照射水平现状及其发展趋势。
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