Simply build your enclosure to the desired height by adding standard size expansion collars between the base and the cover.

只需增加底座和阀盖之间的凸缘，就可以简单的调节到您理想的高度。

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The cover housing also has a mating surface at a base of the cover housing and defined by said walls, such that the mating surface is configured to mate with the bottom surface of the enclosure.

盖壳体还具有在盖壳体的基底处并由所述壁限定的配合表面，从而配合表面被构造为与外壳的底表面配合。

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A system is provided for detecting when an enclosure having a body and a removable cover is opened.

不带光源就是一个灯具，也就是外壳或配件，没有发光源体。

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When the food was toxin-free, the possums spent an average of 40 minutes of every hour eating safely under treelike cover and only 20 minutes in the risky, ground-like enclosure, and that scarcely changed for 1% and 2% cineole.

ECONOMIST: Ecology raids the techniques of chemistry