When the pipeline length and diameter ratio was certain, the flame travel speed of gas explosion and ignition energy would be in a quadratic function relationship.
length diameter ratio
By using improved technology, magnesium diborate whiskers with length of30μ m, and length/ diameter ratio of30～50 could be synthesized.
The sealing property problem for the stirring shaft of high-speed pressured reaction axe with large length to diameter ratio is always a difficult problem to study for designers and users.
When only enhancing the pile stiffness or increasing the length-diameter ratio, no remarkable improvement appears in the proportion shared by tip and bearing capacity of pile.
Machining process of oblique pilot hole for spinnerets with super high length-diameter ratio
gravel-to-sand median diameter ratio
Effect of length-diameter ratio on properties of as-spun PANCF
Simplified analysis on a single fiber fin in the duct flow demonstrates that the heat transfer can be enhanced with the increasing length-to-diameter ratio and thermal conductivity ratio.
In order not to make nickel ring up tank, outside groove diameter ratio inside groove is big, this on the structure solved the nickel ring grooving problem.
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