help中是这么写的:<br /><br />the rate per second at which the sinusoid decreases in amplitude (eg 250).<br /> ~~~~~~~~<br /> 这个单词字典也没能够查到<br /><br />A positive value results in an exponentially decreasing amplitude.<br /> ~~~~~~~~~~~~~<br /> 『数学』幂的, 指数的 <br /><br />A negative value gives an increasing amplitude.<br />A zero (0) value gives a constant amplitude sine wave. |
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