枕垫
发表于 2025-3-25 05:43:47
ld-wide to develop alternative control methods that are safe for humans and the environment. Following the realisation of the risks involved in long term use of pesticides in agriculture, many countries have adapted a policy aimed at minimising the use of synthetic chemical pesticides by establishin
草率女
发表于 2025-3-25 10:40:02
omplex strengths of a number of “secondary sources” of sound introduced into the enclosure. For a given number and location of secondary sources, there is a unique set of complex source strengths which minimises this potential energy. This analysis is applied to the case of a lightly damped enclosur
使熄灭
发表于 2025-3-25 11:52:59
transportation systems, aeroassisting (or aerobraking), defined as the deceleration resulting from the effects of atmospheric drag upon a vehicle during orbital operations, opens new mission opportunities, especially with regard to the establishment of the permanent Space Station Freedom and space e
民间传说
发表于 2025-3-25 18:40:06
particularly for those not previously involved with road-vehicle aerodynamics, I hope we have opened up many new possibilities for future research. Two things should be evident. The problems are certainly significant and challenging from a technical point of view; furthermore, they are also very in
notion
发表于 2025-3-25 20:46:32
rbed air. In the actual case with the usual disposition of the propeller, a part of the wings and most or all of the control surfaces will be under the influence of an additional velocity, more or less turbulent in character, and formed by the wake of the propeller. Moreover even outside the wake pr
Foreshadow
发表于 2025-3-26 03:45:15
niform and of curvilinear motion. No attempt has been made to treat these matters exhaustively, and the reader is referred to the original papers for more complete details. It will be seen, moreover, that these subjects are in the midst, or even at the beginning of their development, so that no fina
考古学
发表于 2025-3-26 08:03:15
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INERT
发表于 2025-3-26 10:27:53
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SMART
发表于 2025-3-26 13:47:59
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Hemoptysis
发表于 2025-3-26 19:54:50
the complex mechanisms that characterize the emergence of risk in technology innovation, .Emerging Technological Risk. bridges contributions from many disciplines in order to sustain a fruitful debate. .Emerging Technological Risk. is one of a series of books developed by the Dependability Interdis