1·Double arcs happen when light is reflected more than once in an atmospheric water droplet.
双重彩虹的产生是由于光线不止一次地被大气中的水滴所反射。
2·When the collected water becomes heavy enough, the water droplet falls to the earth as rain.
水气凝结到一定程度就形成了小水滴，其重量足以使它落到地上，即为雨。
3·It contains instruments to measure wind, both horizontally and vertically; temperature and water droplet distribution inside clouds; pressure and humidity; and lightning.
这些仪器可以从水平和垂直方向上测量风速；捕捉云层内部温度和水滴的分布情况；测量压力、湿度和闪电数据。
4·So water droplet shots may be over-done, but for those new to this type of shot, it can be a very rewarding (but time-consuming) experience.
也许水滴的取景太过了，可是对于拍此类照片的新手来说，大有裨益(但很费时)。
5·There are two common styles of water droplet shots; those of water splashing up from a pool and those of water caught upon surfaces such as leaves and spider's webs.
水滴拍摄通常有两种类型：池中飞溅的水花和蛛网叶片表面附着的水珠。