khz怎么记

Semiconductor laser outputs laser beams of pulse width from 1 μ s to continuous frequency of 1 kHz through control circuit.

半导体激光器，通过控制电路输出脉宽从0.5μs到连续、频率1kHz的激光束。

[ Results] 1. The BAEP latency of professionally aircraft noise-exposed subjects is positively correlated with the hearing threshold of 1,2,4,6,8 KHz frequency and PTA, HPTA and has a good correlations with the high frequency of hearing threshold.

结果①职业接触人群的BAEP潜伏期值与电测听1、2、4、6、8KHz等频率及PTA、HPTA上的听觉阈值呈正相关，且与高频听觉阈值的相关性好。

0.5 kHz was not feasible for newborn as DPOAE hearing screening frequency.

5kHz不宜作为新生儿DPOAE的听力筛选频率。