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| 1. |
What Do You Know About The Nature Of Water? |
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Opflow,
Volume 1,
Issue 3,
1975,
Page 1-6
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PDF (874KB)
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摘要:
This article describes some of the basic chemical and physical properties of water. Its elasticity, viscosity, cohesion, adhesion, and capillarity are covered.
ISSN:0149-8029
DOI:10.1002/j.1551-8701.1975.tb00790.x
出版商:Wiley
年代:1975
数据来源: WILEY
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| 2. |
Preventive Maintenance In Water Treatment Plants |
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Opflow,
Volume 1,
Issue 3,
1975,
Page 4-6
David L. Sullivan,
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PDF (979KB)
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摘要:
Maintenance is the art of keeping plant equipment, structures, and other related facilities in a suitable condition to perform the services for which they were intended. The objective of preventative maintenance is to expose weaknesses before machinery fails and causes any major problems. Among the topics discussed are lubrication of machinery, oil viscosity and the use of the proper oil for each piece of equipment, proper use of motor bearings, and hot bearings as a warning that something is wrong with the equipment.
ISSN:0149-8029
DOI:10.1002/j.1551-8701.1975.tb00792.x
出版商:Wiley
年代:1975
数据来源: WILEY
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| 3. |
Gimmicks and Gadgets |
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Opflow,
Volume 1,
Issue 3,
1975,
Page 7-7
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PDF (775KB)
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摘要:
This month's “Gimmick and Gadget” is a model community water distribution and pollution control display. It is an educational display depicting a miniature city and its working water distribution system with an actual backflow condition occurring from industry. The model has promoted good public relations as an educational aid for school children and industry.
ISSN:0149-8029
DOI:10.1002/j.1551-8701.1975.tb00794.x
出版商:Wiley
年代:1975
数据来源: WILEY
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