有关化学品及相关设备和技术的技术说明；

technical specifications of the certain chemicals and related equipment and technologies;

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第2部分还将说明实现这些算法的技术，这些技术特别适合处理具有内存约束的无线设备。

Part 2 also demonstrates techniques of implementing these algorithms, especially suitable for wireless devices with memory constraints.

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为确保设备安装正确性，本安全阀安装须由有资格证书的管道承包商或维修技术人员按照说明书及其他相应规定进行。

To ensure proper operation, this valve must be installed by a qualified service technician or licensed plumbing contractor in accordance with these instructions and local plumbing codes and standards.

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