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The nitrate‐citrate gels were prepared from metal nitrates and citric acid solutions with various molar ratios of the metal nitrates to citric acid. The results showed that the nitrate citrate gels exhibit a self‐propagating behavior after ignition in air.
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Did, psm 及 did+psm 有何差异？ did 要假定不可观测效应随时间变化趋势相同？ @慧航 显示全部 ...
1，字：word 2，字节：byte 3，位：bit 4，int带符号16位整数 5，dint带符号32位整数，双整数 6， ...
When a talented musician and a passionate writer fall for each other, burgeoning success and a devastating medical diagn ...
