Today we are overpopulated, straining the earth's resources.现在我们人口过多，致使地球资源使用过度。Environmentalists say Australia is already overpopulated.环保人士认为澳大利亚已经人口过剩。Pollution is the price we pay for an overpopulated, over indu...
Today we are overpopulated, straining the earth's resources.现在我们人口过多，致使地球资源使用过度。Pollution is the price we pay for an overpopulated, over - industrialized planet.污染是我们为这个人口过密, 过度工业化的星球所付出的代价....the overpopulated vall...
A blade guard is fitted to protect the operator.为保证操作人员的人身安全安装了桨叶保护罩。The RE - aluminizing technique and coating structure of gas turbine blade made of alloy M 38 G are studied.研究了涡轮叶片材料M38G合金渗稀土 - 铝涂层的工艺过程和组织结构.The matad...