In this micrograph of a dorsal closure in a fruit-fly embryo, the protein actin is marked red, prominent around the gap in the epithelial cells.
这是一只果蝇背向闭合行为的显微图片，其中被涂成了红色的蛋白质活跃于皮层细胞的勾缝四周。
In establishing current mathematical model near the closure gap, two-dimensional model is usually adopted.
建立截流龙口附近的水流数学模型，多采用平面二维模型。
Reporters saw yesterday took to plow the water bridge, the bridge closure at both ends of the room there is a 2-meter-wide gap. 4 pm, the staff with walkie-talkie shouting: "Start closing! ""
记者昨日走上耒水大桥看到，合龙处两端桥梁间有一条2米宽的空隙。 下午4点，工作人员用对讲机呼喊：“开始合龙！”
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