| impacode | 372571 |
|---|---|
| uom(单位) | SET |
| title(品名) | 372571 ECHO SOUNDING DEVICE |
| desc(描述) | For ships constructed before May 25, 1980, weighing greater than 1,600 gross tons and for ships constructed after May 25, 1980, weighing greater than 500 gross tons. All vessels falling under this classification which sail international routes must be fitted with an echo sounding device. Electrically operated instrument that emits a sound from vessel’s submerged surface and then measures and records the time interval which passes before the echo returns. The most popular model is shown here. Please ask for further information and brochures of various models available from local manufacturers when required. |
| cdesc(自动翻译) | 372571 声纳设备 适用于1980年5月25日或之前建造，总吨位超过1,600的船舶，以及1980年5月25日之后建造，总吨位超过500的船舶。所有符合此类分类，在国际航线航行的船只必须安装声纳设备。这是一种由电力驱动的仪器，从船的水下表面发出声音，然后测量并记录回声返回前的时间间隔。这里展示的是最流行的型号。如需了解更多详情和当地制造商提供的不同型号的宣传册，请随时询问。 |
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