给出的表达式便于进行计算机数值计算。
The expressions derived in this paper are tractable for numerical calculation with computer.
使用脉宽表示式计算的结果与计算机数值计算相符。
The value which was calculated using this approximation formula of pulse duration was close to that of solving the rate equations by computer.
验证计算结果表明：解析公式与计算机数值计算法结果相比较，计算误差小，具有实用价值。
The results of verifying calculation show that the analytic formula has smaller computational error as compared with computer numerical arithmetic, and therefore it is practical.
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