For example, a helpdesk agent updating tickets entered in the system has access only to the fixed set of options. The list is set and provides no means of freeform entry.

比如，一个进入该系统的helpdesk代理更新许可仅仅能访问固定的选项集。

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All entries can be broken down into two categories: fixed length and extendable. The information stored in three of the columns is different for the two types of entry.

所有条目均可分成两类：固定长度和可扩展长度。

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As chunks are allocated from an active, fixed-length storage pool entry, eventually the space in that entry runs out.

由于从一个活跃的、固定长度的存储池条目分配了块，最终该条目中的空间耗尽。

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This suggests that the right role for government is not to shower money on a handful of putative winners but to take a portfolio approach: finding companies on the margin of exporting and helping as many as possible overcome the fixed costs of entry.

ECONOMIST: How the government can help things along

But challenges include the long-awaited shake-up of China's telecoms sector, which could see the market becoming fiercely competitive with the entry of fixed-line and broadband providers China Telecom and China Netcom.

BBC: Budget users rein in China Mobile

Fixed system lockup issue after wrong PIN entry.

ENGADGET: Netgear PTV3000 updated, supports Miracast-ready Android devices