The ideal space for a new hive can be difficult to find: the opening should be small, about 10 meters off the ground, and lead to a 40-liter cavity inside a sturdy, living tree.
一个新的蜂房往往很难寻找：在强壮的活着的树有一个40平方分米大小的腔，开口需要小，离地要100米左右。
The lateral opening includes a neck portion and a cavity portion which is used as a constrained space to grow a nanotube.
横向开口包含颈状部分和用作生长纳米管的受限 空间的空腔部分。
The specimen enclosure apparatus includes a container having a cavity configured to receive the specimen and an opening extending through a neck of the container to the cavity.
试样封装设备包括具有设置 成容纳试样的空腔和延伸通过容器颈部到达空腔的开口。
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