英语翻译
第一句:
Calibrationisdonewithpre-weighedtrucksorbyusingdatafromstaticweighingoftrucksfromthefreetrafficflow.
第二局:
Forexample,inenglandsixSiWIMsystemsareusedtocollectdataonover50differentsiteseachyearinperiodofoneweektoonemonth.
1楼的翻译有些生硬呀,有更好的吗?