wǒ / men / xū / yào / míng / què / zhè / liǎng / gè / líng / jiàn / zài / jī / qì / zhōng / de / xiāng / duì / wèi / zhi我们需要明确这两个零件在机器中的相对位置。We need to clarify the relative position of these two parts in the machine.