该方法新颖、简洁而实用，为系统安全分析提供了新的方法和途径。

This is compact and practicable, and provides a new method for the system safety analysis.

youdao

它实用而安全，并且有不同规格和尺寸供您选择。

It is very practical and safe, with different specifications and measurements for your choice.

youdao

苋菜红指示剂具有安全性和实用价值。

Amaranth red pigment has security and practical value.

youdao

苋菜红指示剂具有安全性和实用价值。

Amaranth red pigment has security and practical value.

youdao