Engineer call alarm system is intend for the communation and alarm equipment of vessels.

轮机员报警系统用于船舶上通讯报警系统设备。

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The new teaching material regards training students' communication ability as object, and to "say" it is the most direct communation means.

新教材以培养学生的交际能力为目的，而“说”是最直接的交际手段。

youdao

The new teaching material regards training students' communication ability as object, and to "say" it is the most direct communation means.

新教材以培养学生的交际能力为目的，而“说”是最直接的交际手段。

youdao