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1·Doors of hollow core, even when locked, are vulnerable to break-ins.

空心门，即便锁上了，也易遭贼侵入。

2·The riser's inner hollow core (a pipe within a pipe) is reserved for the drill string.

立管内部核心是空心的(管中管)，留给钻柱使用。

3·Hollow core was linked with hydraulic loose-core implement fixed on the moving die.

空心型芯与固定在动模上的液压抽芯器相连。

4·The size of the hollow core of vortex beam has close relationship with the topological charge.

涡旋光束的空心大小与光束的拓扑荷数有密切关系。

5·The structure is defined by a system of precast concrete porticos and hollow core slab roofing.

预制混凝土柱和空心屋面板构成了建筑的结构系统。

6·A coil compression spring is captured to the pin in the hollow core of a segment and urges the adjacent components together.

卷曲的压缩弹簧被固定在段的空芯内的销上，并促使相邻的部件互相靠近。

7·The invention relates to an improvement method of a core rod of a metal rolled tube, in particular to a hollow core rod used for a planetary rolling mill.

本发明涉及一种金属轧制管的芯棒改进方法，具体地说是一种行星轧机用空芯棒。

8·The first and second optical waveguides (46, 62) and the first output optical waveguide (64) are hollow core optical waveguides formed as channels in a substrate.

第一和第二光波导(46、62)以及第一输出光波导(64)是作为通道在衬底上形成的空芯光波导。

9·Simple and enormous intersecting walls give a balanced symmetry but are also the means by which the structure stands at the height of a 14-storey building, with an entirely hollow core.

简单而巨大的相交墙赋予了平衡的对称性，但也意味着结构具有14层高建筑物的高度，具有完全空心的核心。

10·The waveguide is preferably in the form of an optical fiber having a cladding that contains a photonic band gap structure which in turn envelopes a light conducting, hollow core portion.

所述波导采用的形式最好是具有包含光子带隙结构的包层而 该结构又包住传导光的空芯部分的光纤。