卧式真空炉计算机自动控温研制 - 电测仪器网 关键词： DCS系统；PID控制；噪声屏蔽；比较及配比运算 [gap=566]Keywords: DCS system;PID control;Noise shielding;Compare and matching operation
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In addition, the engines are located on the aft upper surface, providing natural noise shielding that makes the configuration quieter during takeoff and landing.
此外，发动机位于后部上表面，提供了自然的噪声屏蔽，使得配置在起飞和着陆期间更安静。
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