coincidences巧合coincidencen.巧合；一致；同时发生coincidence scintillation spectrometer符合闪烁分光仪coincidence and anticoincidence systems符合和反符合系统coincidence and anti-coincidence analyzer符合及反符合分析器coincidence of luminance-chrominance delay亮度-色度延迟重合Coincidence theory of technological innovation技术创新契合论coincidence and divemification between cultures文化偶合与差异coincidence double-picture measuring attachment重合重影测量设备coincidence anticoincidence gammaray spectrometer符合反符合γ射线谱仪Coincidence anticoincidence gamma ray spectrometer符合反符合伽马射线谱仪coincidence of micro-economy and macro-econo-my宏微观经济相一致

1. The pattern drawn by the sand pendulums is related with the length of their swinging lines and the position of the common point of the two swinging lines.
   沙摆绘制出的图形与其摆绳的长度及两条摆绳合点的位置有关。