Tractor and farm tool necessary ability and energy conservationrelations.
拖拉机与农具配套能力与节能型方向的关系。
2
This model is based on a one - dimensional heat conduction equation, an equilibrium press- temperature relation, energy and mass conservationrelations.
喷墨过程的数值建模是建立在一维热传导公式，温度-压强关系式和能量、物质转换关系的平衡的基础上的。
3
This scheme was partly to promote international relations, but also to further the conservation of pandas at home in the wild, and to fund the extraordinarily high-tech Wolong panda Breeding Centre.