棕尾别麻蝇为腐食性昆虫,体形较小,对环境适应能力强,生殖力强大,逐渐成为一种难以防治的卫生害虫。
Sarcophaga peregrina is a pest of health, with a small body, a great power in reproduction and strong adaption to environment.
阐述了T形尾墩消力池的使用条件、设计、消能特点及其在双城市小型水利工程上的应用效果。
This paper discusses the useable condition, design, power reduced characteristic and the application effect in miniature hydraulic project of Tshaped pier mound power reduced pool.
以此模型为基础,分析了尾轮侧向力的动态变化过程,并总结出了水平面内悬挂参数的优选域。
The process of dynamic changes of the side force of tail wheel has also been studied by means of this model and the optimum region of the horizontal linkage parameters is derived.
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