The listed price is generally firm, though one company with two shop outlets gave two different prices, HK$300 apart, for the same model.
所标的价格大体差不多,不 过一家拥有两个店面的公司对同一个型号给出了不同的价格,相差300港元。
2
According to the principle of cold conditions similar, air firmtwo-phase flow experiment of cold conditions is built, testing the original burner model and 3 kinds of improvement test model.