如果溶液远离这个等电位点，那么蛋白质会是高度可溶的因此表面张力梯度就无法形成；如果太接近这个等电位点，蛋白质会析出沉淀。
If the solution is too far from the IEP, the proteins are highly soluble and surface tension gradients never develop; too close, and the proteins precipitate out.
确定每个高度的相关颜色梯度，提取每个像素的高度数据，然后将第二级图像分层以生成计算出的高度图像。
The associated color gradients are determined for each altitude, height data for each pixel is extracted, then the secondary image is sliced to produce the computed altitude images.
越靠近自由表面，底部射流横向发展越窄，而向上的压力梯度，气泡上升速度，底部射流上升高度越大，反之则反；
The more the bubble close to the free surface, the narrower the bottom jet develops crosswise, and the larger the pressure gradient, the rising velocity and the height of the bottom jet is upwards.
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