[名词解释] 中性点(neutral point)
[名词解释] 昙点(cloud point)
[名词解释] 近点(near point of vision)
[名词解释] 计算点 calculate point of hump
[单选题]Point点命令不可以()A.绘制单点或多点B.定距等分直线.圆弧或曲线C.等分角D.定数等分直线.圆弧或曲线
[主观题]Zero-profit-point 零利润点
[名词解释] 等电点(pI,isoelectric point)
[名词解释] Zero-profit-point 零利润点
[问答题] 简述分界点 intermediate traindistancing point。
[名词解释] 点式调速系统 point type speed control system