doubletree
plural of white cell
a device that connects two horses to a wagon or other implement. The tugs of a harness are connected to a singletree, two of which are connected to a doubletree, which, in turn, is connected to the implement.
An aptamer used as a biosensor.
A small latch, as for a gate.
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DiQt(ディクト)
無料
★★★★★★★★★★