Starting on March 23, the instruments will be turned on and checked out, and on April 4 the mission's primary science phase will begin.

从3月23号起，(航天器上的)设备将启动并被检查，并于4月4日开始本次任务的主要科研阶段。

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Therefore, the development and utilization of curriculum resources about the primary science is a subject worthy of study.

因此，开发与利用小学科学课课程资源是一个值得研究的课题。

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To do this, the 15, 251-pound AMS and its eight primary science instrument systems use 300, 000 data channels.

ENGADGET: AMS detects excess of positrons, could suggest existence of dark matter

"We should be able to meet many if not all the primary science goals, " said physicist Roger C.

CNN: High hopes to salvage Genesis science

Though Curiosity's primary science mission has yet to begin, the rover, along with probes in orbit, already have transmitted images.

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