Objective To explore an objective and precise method of measuring the angles of human ears.
目的探索一种客观、准确地测量耳廓夹角的方法。
A wetness measurement system based on cavity perturbation method is designed for precise measuring, including automatic frequency tracing system and equal precision frequency measurement system.
以汽轮机内蒸汽湿度的准确测量为目的，设计了基于微波谐振腔微扰法的蒸汽湿度测量系统：自动频率跟踪系统和等精度频率测量系统。
The diesels temperatures, run idle, and fuel quality were analyzed in measuring smoke unit, then put forward effective method for acquiring precise smoke unit data.
分析了发动机温度、怠速转速及燃料品质对柴油机烟度的影响，提出了测得准确烟度值的有效途径。
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