英语翻译The effects of the science of measurement are seen every

英语翻译
The effects of the science of measurement are seen everywhere,allowing people to plan their lives and make commercial exchanges with confidence.For example,most people assume that the clocks in their homes and the clocks in their workplaces all display approximately the same time.A pound of hamburger purchased at one grocery store will contain the same quantity of food as the same amount purchased at a store across town.Also,a screw purchased from Company A will fit into a hole made by a drill purchased from Company B,assuming they are specified to the same size.
The basic principles of metrology are simple.Metrology involves measurements and comparisons of a measurement standard to either another measurement standard or to a device of unknown accuracy.It involves the design of tests and methods by which the measurements and comparisons are made,and analysis of the results of the tests.The ultimate references for all measurement quantities(length,current,time,etc.)have been agreed on by international treaties.
翻译的好还给加分,谢绝机译

计量科学的效应随处可见,它使人们得以信心饱满地规划生活、从事商品贸易.举例来说,许多人都相信家里的钟表和办公室里放置的钟表所显示的时间基本相同；从小卖部买来的一磅汉堡包在分量上与在城市另一端的商场里买来的没有差别.同样,从A公司买来的螺丝钉与从B公司买来的螺纹孔可以做到匹配,只要他们的尺寸是一致的.
计量学的基本原理很简单,它包括一种计量标准与另一种计量标准之间的测量与比较,或是一种计量标准与一种未知精度设备之间的测量与比较,计量学包括对某些实验步骤或测试方法的设计,正是这种实验步骤与测试方法使得前面所说的测量与比较得以完成,进而导出最后的测试结果与分析.各个物理量（如长度、电流强度、时间等）的基本单位都是经过国际标准商定确立的.