The switches are IP67 sealed against water and dust exposure.
这些开关是IP67密封防水防灰尘的。
The degree of pulmonary function injury trended increase with the increase of dose of dust exposure.
接触黄麻粉尘工人的肺功能的损害程度随着累计接尘量的增加有加重的趋势。
Conclusion the risk factors especially dust exposure affect the health and lifespan of the iron mine workers.
结论以粉尘为主的职业有害因素明显影响铁矿工人健康和寿命。
The influence of dust exposure on death was mainly showed in occupational exposure to silica dust and wood dust.
接尘对死亡的影响主要表现在职业接触矽尘和木尘。
One provision, in particular, that is new is that now areas that are subject to dust exposure are included in the ATEX.
其中一项条款，尤其是新的是，现在的地区，受粉尘接触是在防爆中。
With type B/AB, increasing age and possibly long-term occupational dust exposure were risk factors for lung cancer mortality.
在B/AB型血的人中，年龄增加和在职业中长期接触粉尘是肺癌死亡率最关键的因素。
Objective To explore the exposure response relationship between the cumulative dust exposure and the decline of lung function in founders.
目的探讨铸造行业粉尘的暴露与肺功能下降之间的剂量效应关系。
Silicosis is an occupational pulmonary disease caused by silica dust exposure, but the mechanisms of the injury and disease development are not well understood.
矽肺是矽尘暴露导致的职业性肺部疾患，它的发病机制至今尚未完全阐明。
Conclusion Hard alloy dust exposure can greatly increase the hair cobalt content of workers, but it almost has no influence on the blood cobalt content in the experimental group.
结论硬质合金粉尘接触可导致人体头发钴含量显著增高，但对人体全血钴含量影响不大。
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。
Multistepwise regression analysis indicated that initial years of dust exposure and chronic bronchitis have significant effects on lung function impairment in miners with past dust exposure.
多因素分析结果表明：接尘起始年代、慢性支气管炎对脱尘工人肺通气功能损害的影响尤为明显。
High salt levels in the diet, long-term occupational dust exposure, and heavy alcohol use (more than 10 wine drinks per week) each increased the risk of lung cancer death by more than twofold.
其中食盐量过高，在职业中长期接触粉尘和酗酒(每周超过10次以上)是最重要的肺癌死亡因素。
Pulmonary function tests were carried out on 212 furriers and 207 control workers, Cumulative level of dust exposure was used as exposure level to relate pulmonary function injury in furriers.
对212名接触皮毛粉尘男性工人与207名男性对照工人进行了肺功能检测。并对累积接尘量与肺功能损害的关系进行了研究。
Coal miners far and away have the highest mortality rate from pneumoconiosis, or black lung disease, which is cause by long-term exposure to coal dust.
尘肺和黑肺病都是因长期接触煤尘所致，那煤矿工无疑是由这两种病导致的死亡率最高的人群。
It's commonly found in arid regions to provide protection from direct exposure to the sun, as well to protect the mouth and eyes from blowing dust and sand.
这种头巾在干旱地区很常见，他可以提供保护，免受太阳直接暴晒护，同时也可以保护嘴巴和眼睛免受飞尘和飞沙的伤害。
This outbreak was associated with exposure to increased levels of airborne dust subsequent to landslides in the aftermath of the earthquake (39).
地震之后发生山体滑坡，导致空气中漂浮的尘埃量增加，从而引起了这次疾病爆发(39)。
But a 2009 study published in the Journal of Occupational and Environmental Medicine suggested a link between the type of cancer Wiebicke had and exposure to the toxic dust at ground zero.
但是2009年由职业与环境医学期刊发布的研究表明，在第一线的有毒尘土与韦比克所患得癌症有关。
The occupational exposure limits (OELs) of wood dust in different countries are however not the same.
不同国家的木粉尘的职业接触极限值（或极限值）却不尽相同。
One view is that allergies can develop as the result of childhood exposure to certain irritants, such as dust or animal dander, while the immune system is not yet mature.
一种观点认为，过敏之所以会产生，是由于人们在童年时期当免疫系统尚未成熟时曝露于某些刺激物之下，如灰尘或动物毛屑。
Long time exposure to dust in densely populated regions, will naturally lead to cracks in case leakage into dust.
长时间暴露在灰尘密集的区域，自然会导致表壳缝隙中漏入入灰尘。
One view is that allergies can develop as the result of childhood exposure to certain irritants, such as dust or animal dander, while the immune system is not yet mature.
一种观点认为过敏可能会由于儿童时期免疫系统还不成熟的时候接触了某种刺激物比如灰尘或动物皮屑而导致。
Chemical and physical methods aimed at reducing exposure to house dust mite allergens cannot be recommended.
无法建议利用化学和物理方法来降低接触室内尘(虫满)过敏原。
It is important for people working with farm animals to be aware of the risks of drinking untreated milk and exposure to dust from animal excreta and afterbirth.
这是很重要的工作的人与家畜必须知道的风险饮用水未经处理的牛奶和接触到的尘埃，动物粪便和胎盘。
Mice who ate the dog dust were protected against RSV infection symptoms, like inflamed, mucus-coated airways, suggesting exposure helped them stave off the virus.
吸进灰尘的老鼠可以防止呼吸道合胞体病毒的危害，不会出现如下症状：发炎红肿、呼吸道充满了粘液。暗示着暴露在空气中可以帮助他们避免病毒的危害。
Objective: Researching lung function changes after acute exposure to wood dust.
目的：探讨木尘对接尘工人肺功能的急性影响。
Wear protective gloves and eye protector to prevent exposure to cutting dust or mist.
请戴保护手套和眼睛防护装置，以避免曝露在切割的灰尘与烟雾之中。
With the similar dust control measures and length of exposure to dust, the main reason of causing different coal mine incidence of pneumoconiosis was the different coalfield geology factors.
在防尘措施、接尘工龄基本相同的情况下，造成煤矿尘肺发病差异的原因主要是煤田地质因素不同。
With a long exposure from a dark location, though, the dust cloud surrounding the Pleiades star cluster becomes very evident.
在一个光害小的地区，进行长时间曝光，这样围绕着昴宿星团的尘埃就显现出来了。
Another 40 workers with no exposure to dust or toxicants were selected as controls. 12 male smokers were 31.8 yr old on average; 8 male non - smokers 32. 3 yr old on average;
另选劳动强度相似、不接触尘、毒的机加工工人40名作为对照，其中男吸烟工人12名，平均年龄31.8岁，男不吸烟工人8名，平均年龄32.3岁；
Another 40 workers with no exposure to dust or toxicants were selected as controls. 12 male smokers were 31.8 yr old on average; 8 male non - smokers 32. 3 yr old on average;
另选劳动强度相似、不接触尘、毒的机加工工人40名作为对照，其中男吸烟工人12名，平均年龄31.8岁，男不吸烟工人8名，平均年龄32.3岁；
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