The principle of exposure duration calibration is formed by adjusting exposure duration and keeping other parameters of digital color camera.
仅改变曝光时间，保持相机的其它参数不变，建立了曝光标定原理。
Objective: This study evaluated the micro-hardness of light-cured composite resin of different light sources, materials , exposure duration time and depth.
目的：探讨不同条件及不同厚度下光敏复合树脂的显微硬度。
Besides acute exposure of large dose, there are repeated exposures mainly in which exposure duration is unequal and dose levels heterogeneous, even exposure may continue for a couple of days.
辐射事故照射，除大剂量急性照射情况外，更多的还有受照延续时间不等、照射水平不一的多次受照情况，甚至尚有数天内连续受照的。
The results of numerical simulation show the lesion of photoaging skin can be selectively damaged if the wavelength, exposure duration and exposure dose of irradiated ligh are reasonably selected.
数值模拟的结果表明：合理选择光辐射波长、辐射曝光时间和曝光剂量，可以选择性的热破坏光老化皮肤中的病损组织。
Exposure to loud noises can definitely produce a partial or complete loss of hearing, depending on the intensity, duration, and frequency composition of the noise.
暴露在巨大的噪音中肯定会造成部分或完全的听力丧失，这取决于噪音的强度、持续时间和频率组成。
It limits the duration of your exposure and keeps the phone farther away from your head and body.
这样会限制你接触手机的持续时间，使手机远离你的头部和身体。
But no evidence demonstrates that the duration of outdoor exposure - in places where people can move freely about - is long enough to cause substantial health damage.
但还没有证据表明，当人在户外自由移动时，身体接触到的烟气的残余，确实多得能够伤害健康。
Sunscreen should never be used to prolong the duration of sun exposure.
绝不将防晒霜用于延长暴露于太阳的时间。
The severity and duration of the trauma, the victim's age, their support system, previous exposure to trauma, and otherfactors will determine the severity and outcome of these symptoms.
创伤的严重性与持续性、幸存者的年龄、他们的支持系统、之前暴露于创伤中的经历，以及其他因素都将决定这些症状的严重性与后果。
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。
Only use your cell phone to establish contact or for conversations lasting a few minutes, as the biological effects are directly related to the duration of exposure.
把手机用于保持基本联络，或只进行几分钟时长的通话。因为手机辐射对人的生理影响与通话时间长短相关。
The health effects caused by radiation exposure depend on its level, type and duration.
辐射对健康的影响与其剂量、类型与持续时间有关。
Travellers with extensive outdoor exposure in rural high-risk areas where immediate access to appropriate medical care may be limited should be considered at risk regardless of duration of their stay.
那些在可能不太容易立即获得适当医疗服务的农村地区从事密集户外活动的旅行者，不论停留多久，也应被视为高风险者。
When possible, communicate via text messaging rather than making a call, to limit the duration of exposure and the proximity to the body.
不紧急的事情尽量用短信联系，减少一通电话，也就减少了身体处在电磁场辐射中的时间，和电磁场靠近身体的机会。
The experimental results show that with increasing duration of exposure to a corrosive environment, the steel mass loss increases appreciably.
实验结果表明：随着在腐蚀环境暴露时间的增加，钢筋的质量损失加剧。
The hazard depends both on the intensity of the noise and the duration of the exposure.
其危害程度取决于噪音强度大小和接触时间的长短。
The duration of patient follow-up in all four studies was shorter than what is generally considered necessary to evaluate for cancer risk from drug exposure.
这四项研究中，患者随访的时间都比通常认为的评价药物暴露是否会导致癌症风险所需的时间短。
MAIN OUTCOME MEASURES: the primary analysis examined the association between hospitalization for a subtrochanteric or femoral shaft fracture and duration of bisphosphonate exposure.
主要转归指标：主要分析调查了因股骨转子下骨折或股骨干骨折住院与双膦酸盐暴露时间之间的关联性。
The severity of carbon monoxide poisoning is a function of the duration of exposure and the concentration of the gas.
一氧化碳中毒的严重程度取决于一氧化碳的浓度和暴露时间。
"This suggests that damage is related to the duration of exposure, so the longer you smoke the more mutations accumulate and the more likely a potential effect may arise in the offspring," Yauk said.
“这说明损伤与暴露时间有关，因此吸烟越久变异累积越多，且更容易在下一代中出现潜在影响，”Yauk说。
Note: as with all health effects, the potential for an increased risk of cancer depends on several factors, including the level, frequency, and duration of exposure.
注：由于与所有健康的影响，潜在的增加患癌症的风险取决于几个因素，包括水平，频率和持续时间的接触。
The results indicated that the occurrence rate of abnormal REG in the exposure group was markedly higher than in the control group, and the abnormal degree depended on the duration of exposure.
结果表明，职业性锰作业工人脑血流图异常率增高，其异常人数随接触工龄的延长而增多。
The financial leasing corporation usually use interest rate exposure to manage the interest rate risk although there are some problems in the exercise of duration model.
金融租赁公司的久期缺口分析是利用久期管理利率风险的主要方法，但久期模型运用中也存在着诸如久期对称成本高、利率风险免疫动态性及凸性等问题。
The degree to which the mechanical properties are changed depends on the temperature and duration of exposure.
机械性能的改变程度取决于时效的温度和时间。
Before putting your cell phone to the ear, wait until your correspondent has picked up. This limits the power of the electromagnetic field emitted near your ear and the duration of your exposure.
拨打电话时等对方接听之后再将手机放到耳边，这样可以减少电磁辐射字你耳边的持续时间。
The relationships among urinary NAG activity, general mercury concentration, urinary mercury and the duration of mercury exposure were analyzed respectively.
并对车间空气汞浓度、尿汞含量、汞作业工龄的关系进行相关分析。
Conclusion as the working condition has been improved, the average morbidity age increased and the duration from dust exposure to development of silicosis prolonged year by year.
结论随作业条件的改善，尘肺患者的平均发病年龄逐年增高、发病工龄逐年延长。
Stepwise multiple regressive analyses indicated that there were notable correlations between serum LH, plasma testosterone and exposure, duration of exposure (P<0.05) .
多元逐步回归分析表明，血清LH及血浆睾酮水平的改变与接触者的工龄明显相关，其次与吸烟也有一定关系。
Stepwise multiple regressive analyses indicated that there were notable correlations between serum LH, plasma testosterone and exposure, duration of exposure (P<0.05) .
多元逐步回归分析表明，血清LH及血浆睾酮水平的改变与接触者的工龄明显相关，其次与吸烟也有一定关系。
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