arc second

常见例句

A sub-arc-second-accuracy method for measuring rotation-angle was proposed.
提出了一种亚角秒精度的转角测量方法。
The ARS301 stage is a precise rotary positioner featuring Aerotech's patented sub-arc second resolution drive mechanism.
ARS301平台是一款紧密的选装定位器，是一款获得公司专利的第二分辨驱动机械设备。
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For a specific fire control dynamic performance test system, its measurement result was 2.34" by using the method, which improved angle precision from 20 to 5 arc-second."
利用该方法测得某型火炮动态性能测试系统的测角精度为2.34″，将该系统的测角精度从20″提高到5″以内。
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That would give it a resolution of a few thousandths of an arc-second—enough, were this an optical rather than a radio telescope, to see a boulder just a few metres across on the surface of the moon.
ECONOMIST: Radio telescopes
Burke missed a 3-pointer at the end of regulation that would have won it for Michigan — the Wolverines' only miss in nine second-half attempts from beyond the arc.
NPR: No. 3 Michigan Beats No. 10 Ohio State 76-74 In OT
They never trailed, held the league's best team from 3-point range to 4-of-25 shooting from beyond the arc, and bolstered their NCAA tournament credentials by beating Duke for the second straight time.
NPR: Wells Leads Maryland To 83-74 Upset Of No. 2 Duke