In water, however, the peak overpressure does not fall off as rapidly with distance as it does in air . 不过在水中,超压峰值并不像在空气中那样随距离的增加下降得那么快。
Peaking in the frequency spectrum due to repetition of signals by multiple reflection is not confined to water layers . 多次反射波引起的信号重复在频谱中造成的峰值增多,并不仅仅局限于水层。
Photoflash'bulbs which usually have a duration of about 20 milliseconds above half peak intensity can be used either singly or flashed in sequence . 光强能在大约20毫秒持续时间内保持在半峰值以上的闪光灯,既可用于单次闪光,也可用于连续闪光。
Water peak attenuation measurement of single - mode fibers 单模纤维水峰值衰减测量
Input voltage : 400v dc ac peak at 1khz 最大输入电压: 400v直流加交流峰值在1khz
Rated short - circuit controlling current peak 50 63 额定短路关合电流峰值ka 50 63
Rated short - circuit controlling current peak 50 ; 63 额定短路关合电流峰值ka 50 63
Time interval average , time interval delay 峰值电压,平均时间间隔,时间间隔延迟
Rated short - circuit controlling current peak 50 ; 63 额定短路关合电流峰值ka 50 63
Parallel wiring quad current for a 2 - pin tube 保证开机后启动电流峰值与撞击数据测量