Analyzing of uncertainty about indication error of timing of telephone accounter in measurement
公用电话计费器计时示值误差测量结果不确定度分析
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Methods: we can use the particles accounter to test the leakage of HAPE filter. Results;
方法:用尘埃粒子计数器检测高效过滤器是否有泄漏现象。
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艾德当会计以维持生计,且利用周末舞会伴奏赚些钱。
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