1. 横死：dice 呆死 | hens 横死 | shoes 竖死

2. 母鸡：storehouse 仓库 | hens 母鸡 | street 街道

3. 换热器网络综合：蛋鸡:laying-egg chichens | 换热器网络综合:HENS | 重产蛋鸭:resuming laying ducks

4. 蛋鸡：高峰期蛋鸡:young laying hens | 蛋鸡:Hens | 蛋鸡:Roman hens

5. hens：heat exchanger networks synthesis; 换热器网络综合

6. hens：heat exchanger network synthesis; 换热网络