In practice ,a rotor weighing about 10 tons and rotating at 3,000 r .p . m . may be so well balanced that the motion ,except for sound ,is just perceptible.
实际上，一根据重约10吨、每分钟3000转的转子可以平衡得非常好，以致除了响声外，人们几乎觉察不出它是在转动。 [分析]此处just =almostnot, hardly 曾误译为“正好觉察得出……”，这样意思就反了
Applying this method to dynamic weighing for automobile, practice indicates the dynamic measurement result is not in accord with the static measurement result, with an error below 1.5%.
将此方法应用于某公路动态汽车衡的开发，安装路试表明，动态测量与静态称重的吻合度控制于1.5%以内。
Taking four weighing idlers for example, its frequency characteristics are analysed and the analysing results are indirectly certified by practice.
以四托辊秤架为例，计算分析了秤架的频率特性，经实验证明计算结果是正确的。
In practice, a rotor weighing about 10 tons and rotating at 3, 000 r. P. M. May be so well balanced that the motion, except for sound, is just perceptible.
实际上，一根据重约10吨、每分钟3000转转子可以平衡得非常好，以致除了响声外，人们几乎觉察不出它是在转动。
The practice has proved that the electronic weighing system checking instrument is accurate, objective, …
该校验仪具有结构简单、系统误差小、调试方便、受环境影响小等特点。
The practice has proved that the electronic weighing system checking instrument is accurate, objective, …
该校验仪具有结构简单、系统误差小、调试方便、受环境影响小等特点。
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