克劳迪娅·犹勒的小组实验研究了蝾螈的识数能力，实验中，当地的红背蝾螈(Plethodoncinereus)面对两组装有果蝇的透明管子的引诱。
To investigate, her team tempted local red-backed salamanders (Plethodon cinereus) with two sets of fruit flies held in clear tubes.
用一根管子，一根透明中空的管子，从管子最上面，你丢进去一个小球，小球迅速穿过管子，飞出来。
You have a tube, a transparent — a tube — a hollow tube, and at the top of the tube you throw a ball through so it whips through the tube and it comes out.
它被使用为透明食品包装和渠管子。
它的反应器由一系列干净的管子构成，每个官子里面都有另外一个不透明的管子。
Its reactor is composed of a series of clear tubes, each with a second, opaque tube nested inside.
向管子的内膛注入本发明之透明胶状组合物，剂量约8毫升。
The internal cavity is filled with clear gel composition according to the invention, a quantity of about 8.0 ml.
向管子的内膛注入本发明之透明胶状组合物，剂量约8毫升。
The internal cavity is filled with clear gel composition according to the invention, a quantity of about 8.0 ml.
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