本加热器是常用的管壳式换热设备，由端盖、壳体、管组和附件组成。
The heater is a kind of used shell- and-tube heat exchanger which consists of head cover, Shell, nest of tubes and accessories.
扁平绕带高压容器是由内筒、交错缠绕在内筒外的钢带层、端盖和封头等组成的新型壳体结构。
A flat ribbon wound pressure vessel is made up of a thin inner shell, flat steel ribbon layers that are cross-helically wound outside the inner shell, a top cover and a bottom cover, etc.
一种便携式电子装置，包括：盖；和壳体，所述壳体与所述盖接合以便在所述壳体与所述盖之间形成空间。
A portable electronic device includes a cover, and a casing engaged with the cover to form a space between the cover and the casing.
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