慢流率导致较高的平均具温度，但创造不可取的温度梯度沿水流路径。
Slower flow rates result in higher average mold temperatures, but create undesirable temperature gradients along the water flow paths.
四通冲洗阀特点：延时自闭、水流路径成“一”字型， 适应的水压比较多， 有手柄式、按钮式、脚踏式。
Characteristics of cross-joint flush valve: they are time-lapse, self-closing, beeline of water route.
在试验中，一只被蒙住眼睛的海豹用胡子感应水流速的变化，从而发现鱼游动的路径——即使那猎物是在30秒以前经过那里的。
In experiments, a blindfolded harbor seal can detect the passage of a fish by using its whiskers to sense changes in flow velocity - even 30 seconds after its prey has passed by.
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