题目内容

木材的胀缩变形是径向大于弦向。

A. 对
B. 错

查看答案

搜索结果不匹配？点我反馈

更多问题

混流式水轮机的公称直径是

A. 转轮出口边的最大直径
B. 固定导叶轴线分布圆的直径
C. 转轮进口边的最大直径
D. 活动导叶轴线分布圆的直径

轴流式、斜流式和贯流式水轮机的公称直径是与叶片轴线相交处的转轮室内径

A. 对
B. 错

冲击式式水轮机的公称直径是

Directions: You are going to read a passage with 10 statements attached to it. Each statement contains information given in one of the paragraphs. Identify the paragraph from which the information is derived. You may choose a paragraph more than once. Each paragraph is marked with a letter.Taking a leap of faith to a new career