The data sampling include two kind: free sampling adapted to random signal and pretrigger sampling adapted to impact signal.

数据采集包括自由采集和预触发采集两种，分别应用于随机信号和冲击信号的采集。

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In this system, the signal sampling includes two kinds, free sampling and trigger sampling which corresponded to contiguous random sample and impact signal respectively.

信号采集模块包括自由采集和触发采集两种，分别适用于连续随机信号和冲击信号的采集。

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To couple microdialysis sampling with flow-injection chemiluminescence analysis for real time and on-line detection of concentration of free cr (III) in the blood of rabbit.

将流动注射化学发光法与微透析采样技术联用，测定家兔血液中游离的金属离子浓度。

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The Wall Street Journal is already doing so, of course, but with a different model than the Times: The Journal offers a certain amount of free content for sampling, and its articles are all indexed in Google.

FORBES: Times of London Paywall Paying Off Already!*