Three new conceptions of blade channel contraction factor, whistling generation function and surging generation function are proposed.
提出了叶道收缩系数、哨声发生函数和喘振发生函数三个新概念。
After analysis, the major affecting factor of alloy fluidity and body contraction are compositions, pouring temperature and the inclusions of alloy.
经过分析得出，影响合金流动性和体收缩的主要因素是合金的成分、浇注温度及合金液中含有的夹杂物。
After analysis, the major affecting factor of alloy fluidity and body contraction are compositions, pouring temperature and the inclusions of alloy.
经过分析得出，影响合金流动性和体收缩的主要因素是合金的成分、浇注温度及合金液中含有的夹杂物。
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