船员还航空邮寄一份样品给实验室作分析之用。
The crew also sent by air Courier a sample for laboratory analysis.
用胶袋把样本装好以便带回实验室作详细分析。
Place the sample in a plastic bag for further investigations.
提供稳定纯正弦波，以便实验室作各种测试。
To provide a stable pure sine wave for laboratory testing for all.
提供稳定纯正弦波，以便实验室作各种测试。
To provide a stable pure sine wave for laboratory testing for all.
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