It also began a programme of encouraging the upgrading of sub-standard gas water-heaters.
同时，又推行一项计划，劝谕使用不符合标准气体热水炉的用户改善热水炉装置。
2
It also began a programme of encouraging the upgrading of sub-standard gas water - heaters.
同时，又推行一项计划，劝谕使用不符合标准气体热水炉的用户改善热水炉装置。
3
The division of the Huaihe River Valley into seven control zones with 34 control districts, which are further divided into 100 sub-districts, as laid down in the Programme and the Plan, is accepted.