公款 发表于 2025-3-21 17:01:02
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Elements of designThe whole of the engineer’s design work is carried out under a strain which it would not be an exaggeration to call tragic. The strain is evident in everything Man does, and comes from the insuperable discrepancy that always exists between what we would like to produce and what we are able to produce.遭遇 发表于 2025-3-22 04:03:43
The need for a clear statement of the problemke its mark because the specification was wrongly prepared. Any major design project should be preceded by a careful assessment of what is required; as well as asking ‘What is wanted?’ we must also ask ‘What can be specified in the given circumstances?’Pillory 发表于 2025-3-22 05:54:20
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https://doi.org/10.1007/978-94-011-6006-3International System of Units (SI); complexity; control; design; engine; engineering design; flow; fluid; ma考得 发表于 2025-3-22 19:33:15
978-94-011-6008-7Blackie & Son Limited 1974beta-cells 发表于 2025-3-22 22:24:54
Book 1974to machine design and makes his point by including a large number of illustrations. He also stresses the need for clear objectives in all design work. Professor Leyer is an experienced designer and an inspiring teacher, and his book is based on his own lecture course in the subject. Throughout, he sDRILL 发表于 2025-3-23 02:10:43
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Control and self-controln most factories, they are not done just as a formality. Later, when the first test has been passed, come electrical, heat and hydraulic tests. Likewise, coolers and pressure vessels are tested for strength and gas—or water—tightness before being installed.