(2) the translation of three expressions by -ing ●● through. on(upon) -ing. as soon as soon after In ing during the time when in the course of in the aspect of 通过分析该设备的性能,我们能更好地了解它。 By analyzing the performance of the device, one can appreciate it better. 物质一经挤压其体积就会缩小。(2) the translation of three expressions by ~ing … through… on (upon) ~ing… as soon as soon after in ~ing… during the time when in the course of in the aspect of 通过分析该设备的性能，我们能更好地了解它。 By analyzing the performance of the device, one can appreciate it better. 物质一经挤压其体积就会缩小