| 1. | Enclosed case decreases pollution by coal dust 采用密闭壳体,粉尘污染小。 |
| 2. | Much of the particulate pollution over los angeles originates in china , according to the journal of geophysical research 按照地球物理杂志的说法,美国洛杉矶的许多粉尘污染发源于中国。 |
| 3. | Hydraulic fluid power . fixed displacement pumps . flow degradation due to classified ac fine test dust contaminant . test method 液压动力.固定式活塞泵.由于ac级细粒粉尘污染引起的流动降缓.试验方法 |
| 4. | A conclusion is drawn that dust pollution of coal warehouse bottom is caused by haulage wind flow , inducd wind flow and impact wave wind flow 研究发现,毛煤仓仓下粉尘污染主要是由皮带牵引风流、落料诱导风流和空气冲击波风流造成的。 |
| 5. | In order to put forward effective dust control measures for coal warehouse top , it is necessary to analyze dust generation mechanism 摘要为了对毛煤仓仓顶粉尘污染提出有效治理措施,需要掌握毛煤仓仓顶落煤过程粉尘析出机理、逸散规律。 |
| 6. | In order to put forward effective dust control measures for coal warehouse bottom , it is necessary to analyze dust pollution mechanism 摘要为了对毛煤仓仓下粉尘污染提出有效治理措施,需要掌握毛煤仓仓下落煤过程粉尘析出机理、逸散规律。 |
| 7. | A conclusion is drawn that dust pollution of coal warehouse - top is comprised by haulage wind flow , inducement wind flow and impact wave wind flow 研究发现,毛煤仓仓顶粉尘污染主要是由皮带牵引风流、落料诱导风流和空气冲击波风流造成的。 |
| 8. | Using fluent soft and designed progamme and by means of numerical analysis , dust generation and pollution mechanism of coal warehouse - bottom in zhun geer coal wahery are studied 采用大型流体计算软件fluent和自编程序相结合的方式,通过数值分析的方法,论证了选煤厂毛煤仓仓下粉尘污染机理。 |
| 9. | Td4n low - speed multi - place - carrier autobalancing centrifuge is specific for analysis of urine dreg , brushless , no carbon dust , autobalancing , high efficacy , fine separation Td4n多管架低速尿沉渣低速离心机是尿沉渣分析的专用离心机,具有无碳刷粉尘污染,自动平衡、效率高、分离效果好的特点。 |
| 10. | They can be used in hiavily dust - pol - luted awful environments , the occasions with no attached lubrication and sealing to the mechanism , medium & low rotating speed . it has large rotating torque and low use cost 使用在有重度粉尘污染的恶习劣环境.机构不需附带润滑及密封,中低转速的场合.转动扭矩大,使用成本较低 |