有一些湿地在古代就形成了。There are some areas of wetland which are of ancient origin.他们不时陷入没膝的湿地。They sometimes sank knee-deep into the marsh.牛群在湿地上吃草。Cows were grazing on the marshes....
Excessive deflection in a structure may cause considerable damage to cladding.结构的过大挠度可以引起覆盖面的巨大破坏.Latest progress and research status of laser cladding ceramic coating was summarized.综述了激光熔覆稀土陶瓷涂层研究现状及其最新进展.The general d...
这过程所靠的是一种高选择性和低活性的催化剂.This process relies on a catalyst of high selectivity and week activity.非活性的成分也是重要的.The inactive components are important too.这些化学活性的酶造成广泛损害.These chemically active ferments cause havoc....
They even set up their own news agency to peddle anti-isolationist propaganda.他们甚至设立了自己的通讯社来宣扬反孤立主义。The tactics of closed - doorism are, on the contrary , the tactics of the regal isolationist.关门主义 的策略则是孤家寡人的策略.For most ...