His greatest innovation was the use of interchangeable parts.他最大的革新在于使用了可互换的零件。These parts are fully interchangeable with those in other machines.这些零件完全可以同其他机器的零件相互替换.Matter and energy are equal and interchangeable.物质和能量...
Afternoon groups relate to the specific addictions and problems therein.下午的小组谈到具体的上瘾病例以及其中的问题。The insurance policy covers the building and any fixtures contained therein.保险单为这座大楼及其中所有的设施保了险。Therein our letters do not wel...