By feeding individual strands of DNA through nanometre-sized holes, researchers in the Netherlands say they have proved the principle of a revolutionary new DNA sequencing technique.
The weight loss feeder designed according to operating time controlled weight loss principle is a kind of continuous weighing feeding equipment.
失重式给料机根据工作时控制重量损失的原理设计，是一种具有计量功能的连续给料设备。
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The main contents are as follows: the structure and operating principle of the half feeding type peanut stripping tester are briefly analyzed, and primary capabilities of this test-bed are summarized.