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                            fireObj.imageSize = new Cesium.Cartesian2(particleSize, particleSize);

                        }
                        if (name === 'particleLife') {
                            //粒子生命
                            fireObj.particleLife = parseFloat(newValue);
                        }
                        if (name === 'speed') {
                            //速度
                            fireObj.speed = parseFloat(newValue);
                        }

     