机械加工余量
allowance───vt.定量供应；n.津贴，零用钱；允许；限额
purchase allowance───进货折让；[贸易]购货折让
mobility allowance───[医]伤残交通补助费
personal allowance───个人津贴；计算所得税时的个人免税额
dearness allowance───物价津贴
capital allowance───[经] 资本减免，资本冲减；[税收]资本减免，[税收]资本冲减
allowance account───备抵账户
family allowance───n.（工资以外的）家庭津贴
hardship allowance───[经] 辛劳津贴；艰苦劳动津贴
company has the special allowance enjoying national senior engineer, doctor, and equipped with the most say the oil into domestic, fat, liquid detection machine lu.───公司拥有享受国家特别津贴的教授级高级工程师、博士，并配备有国内最称进的润滑油、脂、液检测分析机吕。
When designing FDF system of compact spinning, the negative pressure drops resulting from spindles at the front and back of the machine should be kept within allowance.───在紧密纺大风机系统设计中，车头、车尾各锭的负压差异要保持在允许误差范围之内。
practical result shows that workblank is accurately located in the coordinate of machine tool and the sum of machine allowance is minimum.───实际应用结果表明，该方法精确地定位了毛坯在机床坐标系中的位置，并改善了毛坯加工余量的分布情况。