Through nonlinear fitting on clastic coal core gas desorption laws in Jiedong mine, compared each desorption model of the loss to the loss of volume by calculation methods.
通过对街洞矿区碎屑状煤芯瓦斯解吸规律的非线性拟合，对各解吸模式的损失量与用计算方法所求得的损失量进行了比较。
A brief test can determine if cause of hearing loss is in the inner ear or in the brain. The results are useful in hearing aid fitting.
一项简单的测试可以判断听力损失的原因是在内耳还是在大脑。这项结果将有助于助听器的验配。
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