热情美女 发表于 2025-3-21 19:15:03

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不遵守 发表于 2025-3-21 21:36:42

A. Preumont ha. Trials were conducted in pastures and fallows with a perennial grass ., to control grasshopper adults, particularly . L., . F.d.W., . DeG., . F.d.W., and . Pall. Arthropods were collected with sweep-nets or with pitfall traps on the following sampling dates: one day before treatment and on the

箴言 发表于 2025-3-22 02:26:48

A. Preumontto 5.6 kg per cow. The effect of concentrates on herbage intake differed significantly between allowances. At the low allowance level and at daily OM concentrate intakes of 0.8, 3.2 and 5.6 kg per cow, daily herbage OM intake was 10.9, 10.6 and 10.4 kg per cow respectively and mean substitution rate

无意 发表于 2025-3-22 06:59:07

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残酷的地方 发表于 2025-3-22 10:26:50

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原来 发表于 2025-3-22 15:21:42

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清楚 发表于 2025-3-22 19:11:34

A. Preumontcated principal had systematically eliminated weak teachers and replaced them with faculty with strong academic credentials and a passion for teaching. It is McClain’s view that teaching ability is strongly correlated with the academic rigor and performance of the teacher’s own education. He also af

惊呼 发表于 2025-3-23 00:14:57

Electromagnetic and Piezoelectric Transducers,, cannot influence the rigid body motion of a structure..This chapter begins with a description of the voice-coil transducer and its application to the proof-mass actuator and the geophone (absolute velocity sensor). Follows a brief discussion of the single axis gyrostabilizer. The remaining of the

有毒 发表于 2025-3-23 04:13:31

Controllability and Observability,ers are not controllable because they have a nodal point at the center. Similarly, a displacement sensor will be insensitive to the modes having a nodal point where it is located. According to the rank tests, as soon as the actuator or the sensor are slightly moved away from the nodal point, the ran

enflame 发表于 2025-3-23 07:42:22

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查看完整版本: Titlebook: Vibration Control of Active Structures; An Introduction A. Preumont Textbook 20113rd edition Springer Science+Business Media B.V. 2011 acti