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- There were 62 positive allergen in inhalant group in the 180 urticaria patients tested and positive ratio was 34 44%. Common inhalant allergens were powder dust,housedust acarus and cockroach. 180例病人中 ;吸入组检出阳性 62例 ;阳性率 34 .;4 4%25;常见的吸入过敏原为粉尘螨、屋尘螨、蟑螂 ;
- Keywords Powder ore belt;Powder dust;Venturi water film deduster; 粉矿皮带;粉尘;文丘里水膜除尘器;
- Keywords needle-punched filtration;pleat filter;powder dust; 针刺滤料;过滤筒;粉尘;
- The motor car disappeared in eddy of dust. 汽车在一片扬尘的涡流中不见了。
- The forest will act as a defense against desert dust. 森林能起防御沙漠灰沙的作用。
- The dust falls to the ground as a fine powder. 这些尘埃就像一种好的粉末落在土地上。
- The car raised quite a dust as we drove off. 我们走时车子扬起了一阵尘土。
- A filter traps dust from the air. 过滤网可存住空气中的尘埃。
- Most synthetic detergents are in the form of powder or liquid. 大多数合成洗涤剂呈粉状或液态。
- How many enemies bit the dust in the battle? 在这次战斗中打死了多少敌人？
- The city lay in the dust after the battle. 战斗结束后，全城成为废墟。
- Actually they even have vanilla powder. 实际上还可以加香草粉。
- The dust on the shelf show up in the sunlight. 在阳光照射下能看见架子上有灰尘。
- He flicked away the dust with a cloth. 他用一块布拂去灰尘。
- Dust the repair to prevent adhesion to outer cover. 清整修补处以防与外胎粘连。
- He takes a powder every morning. 他每天早晨吃一种粉状药。
- Dust thou art, and unto dust shalt thou return. 你本是尘土就该归於尘土。
- My briefcase was beginning to gather dust. 我的手提箱不怎么使用了。
- The relic, when exposed to air, turned to dust. 这件文物，接触空气之后，变成了粉末。
- Borax is a kind of white powder. 硼砂是一种白色粉末。
