Table 2 shows the main operators that are most useful.

表 2 列出了最有用的操作符。

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The main operators: Adventure mountains, climbing rock climbing training, business activities, paragliding, hot-air balloon.

主要经营：高山探险、攀岩攀冰培训、企业活动、滑翔伞、热气球。

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The main operators of the algorithm included hyper mutation, positive selection to produce memory cells and similar cell suppression.

算法的主要操作算子包括超变异、正选择、记忆细胞产生和抗体相似性抑制。

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Virgin Mobile, the smallest of the UK's five main mobile phone operators, had 22% growth subscriber numbers in the final three months of last year, impressing analysts at a time when growth opportunities were thought to be slender for mobile operators.

BBC: Branson may take Virgin Mobile public

The main British package-holiday operators have already stopped flying customers to Mexico.

ECONOMIST: Business travel

Currently their main obstacle is the unwillingness of cable operators to put a network of interest to only a fraction of their viewers on a tier available to a broad number of their subscribers.

WSJ: Comcast Ordered to Carry Tennis Channel More Widely