Galvanoscope
n. 驗電流器\\n[化] 驗電流器
??? 情景例句
The best way to promote your products is through advertising.
推廣產品最好的方法就是買廣告。
Let me tell you about our product.
關于產品一事讓我向你說明。
Now that a tunnel ahs been built through the mountains, the Pass is less dangerous,
如今由于山里開挖了隧道，翻越山口已不那么危險了。