Because your optical rotation testing was not conducted under the required environmental conditions, the test results generated may be inaccurate.

由于你的旋光度检测未在要求的环境条件下进行操作，因此检测结果很可能是不准确的。

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High speed rotation solid propellant rocket motor recording apparatus which we designed is going to resolve pressure testing of rocket motor in high speed rotation.

本文设计的高速旋转固体火箭发动机内置动态参数记录仪，着重解决火箭发动机在高速旋转状态下压力测试问题。

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This paper analyzes the offcenter error of installing reference ball as testing lathe main spindle rotation errors in Ningxia Institute of Technology and puts forward the way of eliminating errors.

本文对宁夏工学院测试车床主轴回转误差运动时基准球安装偏心引起的误差进行了分析，并提出了剔除该误差的方法。

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Testing a similar crystal, the scientists proved that by rotation it was possible to find the point where the two beams converge - indicating the direction of the Sun.

BBC: 'Viking sunstone' found in shipwreck