minus tolerance是什么意思

用法例句

The rebars measured up to national standards are produced based on the process optimization on minus tolerance of rebar at Medium-sized Steel Plant.

通过对中型轧钢厂螺纹钢负公差生产工艺的优化及生产过程的控制,生产出符合国家标准要求的螺纹钢;螺纹钢的负公差率得到提高。

Aiming at the strict request of minus tolerance rolling of 20Mn hot rolled bar steel, measures such as optimizing rolling craftwork and improving technique and equipments etc.

针对用户对圆环链用 2 0Mn热轧圆钢负公差轧制的严格要求 ,采取了优化轧制工艺设计和设备技术改进等一系列措施 ,保证了研制开发的圆环链用热轧圆钢的各项性能和外形尺寸等技术指标全部达到标准和用户的要