节省的

I have to buy a more economical stove.

我得买一个更燃料的火炉。

I have to economize where I can.

能的地方我都得。

Equip the home with labor-saving devices such as dishwash-ers.

在家中使用洗碗机、吸尘器劳力的电器。

In this scheme we put forward the concept of matrix pool on which our key predistribution scheme is upbuilt，and encrpytion scheme is introduced into the process of key transfer.

该方案提出矩阵池的概念，将钥的预配置建立在多个钥矩阵之上，的存储空间，增强网络的可扩展性。将加传输机制应用到钥的传输过程中，增强钥传输过程中的安全性。