The efferent fibers which projected from PVN to ependyma of the spinal cord perhaps released neurohormones into cerebrospinal fluid, thus having effects of regulation on the spinal cord.
脊髓室管膜的PVN传出纤维可能向脑脊液中释放神经激素，从而对脊髓发挥调节作用。
The influence to operation of different fluid quantity, concentration and reflex ratio is analyzed. A method of regulation adopted by the authors is put forward.
对精馏过程中不同的进料量，进料浓度、回流比对操作的影响进行了分析讨论，并提出了所采取的调节方法。
First this paper research on using variable speed fluid couplings in speed regulation control system of dual pumps or fans machines running in parallel mode.
本文首先对调速型液力偶合器应用于泵或风机双机并联运行的调速控制系统进行研究。
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