The large dynamic testing devices in the US are listed and the drop hammer test is introduced as an alternative test.

对部分测试内容进行了着重讨论，并列出了美国大型动力测试设备的情况。

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Conclusion Being objective, frequency-specific, ASSR to multiple simultaneous stimuli is proven to be an alternative test for guinea pigs.

结论：同步多频听觉稳态诱发电位测试具有频率特异性、客观的特点，可以作为豚鼠听力测试的备选方法。

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If you're interested in taking the mobile keyboard alternative for a test drive, we'd recommend you head to the company's site now to sign-up.

ENGADGET

Cohen says the company will test several alternative approaches to giving customers more bandwidth.

FORBES: Comcast Revising Rules On High-Speed Data Service

Another alternative, the EIA test, which detects substances produced by the chlamydia bacteria that trigger the immune system or immune system chemicals produced in response, is less complex.

BBC: NEWS | Health | 'Instant test' for sex disease