The limit for occupational radiation exposure among workers who deal with radioactive material is 50 millisieverts.
对于职业的处理放射性物质的工人，接触辐射的极限是50毫西韦特。
Part of the trick was to find a suitable photochromic material whose clear and opaque parts would remain stable after the initial exposure to light.
成功实现这一过程的部分关键在于找到合适的光敏材料，其在最初曝光之后透明与不透明区域都应保持稳定。
However, TCDD does not affect genetic material and there is a level of exposure below which cancer risk would be negligible.
不过，TCDD并不影响遗传物质，并且低于一定剂量的接触，致癌风险可以忽略不计。
That fine volcanic ash could pose a risk to jet engines, which have cut out in the past after exposure to similar volcanic material.
可怕的火山灰可能对喷气式发动机造成威胁，过去当发动机遇到类似的火山灰物质时，引擎就会突然停转。
Lagardere's distribution division, for example, which ships printed material out to retail stores, has fixed costs and direct exposure to tumbling newspaper and magazine circulation.
比如交运印刷品到各零售店的拉加代尔分销部门，有固定成本，因此对报纸与杂志发行量暴跌有直接的敞口风险。
But a Goldman spokesman said its exposure was "not material", according to reports.
但是高盛发言人说，根据报表，高盛的受到的影响“并不是非常严重”。
Oxygen concentrations in excess of 23% increase the hazard exposure to personnel and material.
氧浓度超过23%增加了暴露于其中的人员和材料的危险。
Excessive exposure to direct-sunlight has softened handle material.
过分暴露在直接阳光下会软化手柄材质。
The pacing technology in making the WDM device such as selecting record material, making sure recording geometry and exposure time are analyzed further.
进一步分析该WDM器件制作过程中诸如记录材料选择、写入光路及曝光时序的确定等关键技术环节。
This exposure could come from the release of radioactive material from the plant into the environment, usually characterized by a plume (cloud-like) formation.
站中核物质泄漏到外界环境中就会引起核辐射，通常呈向上的云状。
This invention introduces solid phase carrier which contains polymeric material and possesses at least one activated part, and said activated part possesses enlarged exposure area.
本发明描述了包含聚合材料并具有至少一个活化部分的固相载体，所述活化部分具有增大了的暴露表面积。
A number of exposure procedures are listed in an appendix; however, this practice does not specify the exposure conditions best suited for the material to be tested.
附录中列出了一些曝晒操作步骤，不过该操作步骤并非必定是最为适应待测材料的操作步骤。
The material selection and service condition for high temperature hydrogen exposure piping and furnace pipe was analyzed for one chemical plant imported from Japan.
本文分析了某化工公司从日本引进的苯加氢装置高温高压临氢管道及加热炉炉管的选材以及运行情况。
He argues that extensive reading will lead to language acquisition, provided that the texts include adequate exposure to the language, interesting material, and a relaxed learning environment.
他认为，广泛的阅读会导致语言习得的文献，包括足够暴露在语言、有趣的材料，和一个轻松的学习环境。
4 if the material easy to avoid watchband permeability and moisture, moisture, cosmetics, etc. chemical items contact, and avoid exposure, to prevent discoloration and deformation.
若表带材质易渗，须避免与水份、湿气、化妆品、等含化学成分的物品接触，同时避免暴晒，以防褪色、变形。
The invention discloses a disposable exposure and identification medical product mark which is made from sensitive material additive.
本发明公开了一种由感光材料添加物制成的一次性使用曝光识别医疗用品标识。
1986; Parades et al., 1987 result in exposure to cement or its raw materials being necessary reality so we should know the radioactivity for cement and its raw material.
帕雷德斯等人，1987年水泥或原料曝光水泥或它是必要的现实，所以我们应该知道的水泥及其原料的放射性原料的结果。
Colour fast: An ink or coloured material whose colour is not affected by exposure to air or specified chemicals.
耐久色：能够抵受空气或某类化学品的影响而不变色的油墨或颜色材料。
Colour fast: An ink or coloured material whose colour is not affected by exposure to air or specified chemicals.
耐久色：能够抵受空气或某类化学品的影响而不变色的油墨或颜色材料。
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