求翻译：知道七十年代两组科学家分别用了十多万头羊和猪的下丘脑才提取出几毫克下丘脑的释放激素，而仅需注射几微克这类激素就可以导致垂体分泌大量激素，这才最后确定了下丘脑对垂体激素调节的新概念，由于下丘脑释放激素的分离，合成，为神经内分泌调节的概念提供了有力的证据，并改变了许多内分泌疾病诊断和治疗的方法。是什么意思？

Two groups of scientists were used in the 1970s tens of thousands of sheep and pig hypothalamus to extract a few milligrams of the hypothalamic releasing hormone, only injection of a few micrograms of these hormones can cause the pituitary to secrete large amounts of hormone, this last The new conce

Know that the 70s with a group of scientists were more than 10,000 sheep and 10 pigs of the hypothalamus to extract a few mg hypothalamus of the brain hormone release, and is only required shot several micro-g such hormone secretion can lead to pituitary hormones, and this is a final determination o

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Know 70 generation two group scientists respectively with has more than 100,000 sheep and pig of Xia thalamus only extraction out several mg Xia thalamus of release hormone, and only needed injection several µg this class hormone on can led to pituitary secretion large hormone, this only last determ

Knew the 70's two group of scientists have used more than ten ten thousand bellwethers and pig's under cerebral ganglion separately only then withdraw several milligrams under cerebral ganglion the release hormone, but only must inject several micrograms this kind of hormones to be possible to cause