1
- a long pipe, typically underground, for conveying oil, gas, etc. over long distances（长距离输送油、气等的）管道, 管线, 输油管, 输气管。
1.1
- figurative a channel supplying goods or information〈喻〉（供应货物、信息等的）渠道, 途径, 线路：
the biggest heroin pipeline in history.
历史上最大的海洛因输送线路。
1.2
- (in surfing) the hollow formed by the breaking of a very large wave（冲浪用语）大浪的空心部分。
1.3
- Computing a linear sequence of specialized modules used for pipelining【计算机】流水线。
with obj. and adverbial of direction
1- convey (a substance) by a pipeline用管道（或管线）输送。
1.1
- with obj. [often as adj. pipelined] Computing design or execute (a computer or instruction) using the technique of pipelining【计算机】运用流水线技术设计（或执行）。
短语
in the pipeline
- in the process of being developed在进行中, 在运输中, 在生产中, 在处理中。