Plate conveyor head round the main device, the chain plate scale devices, the end of round tensioning device, rack and drive components.

板式输送机主要由头轮装置、鳞板链条装置、尾轮张紧装置、机架和驱动装置组成（略）。

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It comes in two parts - a scale placed under the plate and a small computer screen showing a graphic of the food that gradually disappears as the user eats.

这种仪器由两部分组成——一个放置于盘子底部的秤和一个小型的电脑屏幕。此屏幕能够显示出食物图像，且食物图像会随着使用者的进食而逐渐消失。

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Mantle material can sink at a plate boundary, and then flow back upward farther away, pushing on the crust - a process called small scale convection.

地幔，这种物质可以在板块边界处下沉，然后向上回流到较远的地方，再与地壳相碰撞——这个过程被称为小规模的对流。

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By the 1960s, scientists had developed a theory called plate tectonics explaining the locations of volcanoes and other large-scale geologic features.

BBC: The Pacific 'Ring of Fire'