The rubber skirts round the bottom of a hovercraft were destroyed.气垫船底部四周的橡胶护板被毁了.We took a hovercraft across the English Channel.我们乘气垫船横渡英吉利海峡.Strapping the skis on the roof, we boarded the hovercraft in Dover.用带子把滑水板绑在...
Strapping the skis on the roof, we boarded the hovercraft in Dover.用带子把滑水板绑在船顶后，我们就在多佛登上了气垫船。These hovercraft can easily outpace most boats.这些气垫船在速度上能轻而易举地超过大多数船只。The rubber skirts round the bottom of a hovercraft were d...
英国的失业人数已上升至占劳动力总数的8.1％。Unemployment in Britain rose to 8.1% of the labour force.白细胞总数的减少,会降低对疾病的抵抗力.The reduction in white blood cell counts lowers resistance to disease.他欠我100英镑,但是只能偿还总数的一半.He owed me ￡１００ but could pay...
He had lacerations on his back and thighs.他的背部和大腿都有划伤。What are those lacerations on her arms and feet?她胳膊和腿上的那些破口是什么?The perineum should be examined for contusions, hematomas, lacerations and urethral bleeding.会阴部检查包括是否存...
The most commonly used plant cell wall hydrolytic enzymes have pectinase, cellulase and hemicellulase enzymes.水解植物细胞壁最常用的酶有果胶酶 、 纤维素酶和半纤维素酶.Linen fabrics are treated by composite enzyme ( pectinase and cellulase ).以复合酶 (...
牛顿说他已放弃了微元或无穷小量.Newton says he has abandoned the infinitesimal or infinitely small quantity.定理1与是等阶无穷小的充分必要条件为.Theorem 1 and are equivalent infinitesimals if and only if.第2周数列的极限. 函数的极限. 无穷小与无穷大.Week 2 Limit of number se...