The gravel pits have been landscaped and planted to make them attractive to wildfowl...砾石采掘坑已进行了景观美化并种上了草木，希望能吸引野禽的到来。I rammed down the earth around the newly - planted tree.我将新栽的树周围的土捣硬.When field bunds which planted so...
The process of carbonation precipitation is intensively affected by super - saturation.碳酸化分解过程强烈地受到过饱和度的影响.How to prevent concrete from freezing - thaw and carbonation is very important.研究如何防止混凝土冻融、碳化具有重要意义.Carbonation i...