预先装配的平行钢丝索与结构钢缆相比, 不需要预拉.Preassembled parallel wire strands, in contrast to structural strands, do not require prestretching.分析了7075-T651合金厚板预拉伸断裂的原因.The crack causes for pre - stretching plates of 7075 T 651 alloy are a...
这首交响曲确实需要为数不少的一组演奏者。The symphony does require a largish group of players.演奏者的技巧完美, 但他演奏得毫无感情.The musician's execution was perfect, but he played without feeling.演奏者将用笛子吹奏一支曲子.The piper will pipe a tune....