某些情况下，我们需要两个不相关的电流噪声源，如左上图所示。
In some cases, it is important to have two separate current noise sources, as shown in the upper left.
左上图为波涌灌溉田间应用实践，右下图为中国水科院研制的波涌控制阀。
Upper Left is the Practice of Surge Irrigation. Below is the Surge Valve Made by IWHR.
手伸入腹腔，拉出内脏，仔细不要弄破内里的鸟蛋。留下强健的肝脏和心脏(见左上图)。
Reach into the gut cavity and pull out the offal, taking care not to break any eggs. Keep the liver and heart if healthy (see above left).
譬如说今日的(左上图)，气体巨型星海王星的重力通过对轨道就在行星们不远处的柯伊伯带的结冰尘埃和残骸拉扯制造出数个缺口。
Today (top left), for example, the gravity of the gas giant Neptune creates gaps by tugging at the icy dust and debris of the Kuiper belt, which orbits just beyond the planets.
你甚至可以玩个战略棋盘游戏——翻转棋，上图左上角所示。
You could even play a game, the strategy board game Reversi, seen here on the top left.
上图中向左上升的对角线光带就是被太阳系中的微小颗粒反射的黄道光。
Pictured rising diagonally up to the left in the above image, zodiacal light is just sunlight reflected by tiny dust particles orbiting in our Solar System.
上图中向左上升的对角线光带就是被太阳系中的微小颗粒反射的黄道光。
Pictured rising diagonally up to the left in the above image, zodiacal light is just sunlight reflected by tiny dust particles orbiting in our Solar System.
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