借助光栅原理，让屏幕发出的光只能从正面特定角度范围内看到，从而实现「大角度防窥」的效果：
// Concatenate pending data with new chunks
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Today, the brand is owned by US drinks giant Keurig Dr Pepper, but Twig's continues to make it under licence for sale in its Wisconsin territory, and it remains an independent company.
int32 HeadersNum = 0;
offset += chunkSize;