Losses from a combinationof shoplifting, worker and supplier theft, and accounting errors amounted to 3% of all retail sales.
店面扒手、工人和供货商的偷窃，与会计账目错误造成的损失合计占全部销售额的3%。
2
The main theories are errors by the pilot or by the air-traffic controllers, a technical problem with the navigation equipment or some combinationof these.
主要推断是飞行员驾驶失误或由于空中交通管制，导航设备出现技术故障或者是两者共同所致。
3
Threshold rattling speed not only depends upon the frequency and amplitude of the errorsof a gear pair, but also time-varying meshing stiffness and their combination frequency.