The scientist’s experiments have thrown great light on the amazing ways honeybees communicate in their dark hives.这位科学家的实验很清楚地表明了在黑暗的蜂房里,蜜蜂是怎样以很巧妙的方式传递信息的。You wonder how honeybees tell each other where to find food?你想知道蜜...
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....