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- Abstract: An experimental method for preparing respirable dust filter samples using a selfmade standard dust generator was introduced. 文摘:介紹了自制的標準呼吸性粉塵發(fā)生裝置制備含石英呼吸性粉塵濾膜樣品的實(shí)驗方法。
- An experimental method for preparing respirable dust filter samples using a selfmade standard dust generator was introduced. 介紹了自制的標準呼吸性粉塵發(fā)生裝置制備含石英呼吸性粉塵濾膜樣品的實(shí)驗方法。
- This paper describes the research on the use of sonic coagulation mechanism in spray to improve the removal efficinecy of dust, especially of respirable dust. 本文論述了利用聲凝聚機理提高噴霧降塵效果,特別是對呼吸塵的降塵效果的研究過(guò)程。
- This innovational device could be used to block up the respirable dust produced in the process of coal mining to diffuse to the operators? working area. 此革新裝置的原理和作用是以形成透明的“空氣幕墻”將采煤司機工作區與采煤機截煤區分隔,阻止呼吸性粉塵向司機處擴散。
- The laboratory tests and underground application show that this dust suppression technique has re-markable effect on the total dust,especially on the respirable dust. 實(shí)驗室試驗和井下使用結果表明，這種噴霧降塵技術(shù)對總粉塵，特別是對呼吸塵具有顯著(zhù)的降塵效果。
- The motor car disappeared in eddy of dust. 汽車(chē)在一片揚塵的渦流中不見(jiàn)了。
- Respiration is difficult at great heights. 在很高的高原上呼吸很困難。
- The forest will act as a defense against desert dust. 森林能起防御沙漠灰沙的作用。
- Respirable dust has the distinctive features of tiny in particulate diameter, long-suspending and invisible to naked eyes.It is easy to be deposited in pulmonary alveoli causing CWP. 呼吸性粉塵粒徑小、懸浮時(shí)間長(cháng)、肉眼不可見(jiàn)，極易被吸入人體的肺部并沉積于肺泡區內，隨著(zhù)沉積量的增加，可引發(fā)塵肺病。
- The car raised quite a dust as we drove off. 我們走時(shí)車(chē)子揚起了一陣塵土。
- Respiration becomes difficult at great heights. 在很高的地方呼吸就變得困難了。
- Basic principle, experiment condition, operating process, method and steps of X-ray diffraction method to determine free silica content of respirable dust in mines are introduced in this paper. 本文介紹了應用X射線(xiàn)衍射儀測定礦山呼吸性粉塵中游離二氧化硅含量的基本原理、實(shí)驗條件以及操作過(guò)程、方法步驟等。
- A filter traps dust from the air. 過(guò)濾網(wǎng)可存住空氣中的塵埃。
- By investigation found that our existing methods of dust spray equipment and the dust is the common problem of dust control efficiency is not high, respirable dust and dust all settlement rate is low. 本文通過(guò)調研發(fā)現,我國現有的噴霧降塵方法和降塵設備普遍存在的問(wèn)題是降塵效率不高,呼吸性粉塵和全塵的沉降率低。
- How many enemies bit the dust in the battle? 在這次戰斗中打死了多少敵人？
- The air inhaled and exhaled in respiration. 呼吸的空氣在呼吸中吸入和呼出的空氣
- The city lay in the dust after the battle. 戰斗結束后，全城成為廢墟。
- The dust on the shelf show up in the sunlight. 在陽(yáng)光照射下能看見(jiàn)架子上有灰塵。
- He flicked away the dust with a cloth. 他用一塊布拂去灰塵。
- Dust the repair to prevent adhesion to outer cover. 清整修補處以防與外胎粘連。
