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It also presents a circuit of composing special cutting TV frame.
并给出了一种合成电视画面特技切换的电路。
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The chain guide frame of coal cutting machine is produced with metabainited cast steel.
将准贝氏体铸钢应用于采煤机链轨架。
youdao
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The chain guide frame of coal cutting machine is produced with metabainited cast steel.
将准贝氏体铸钢应用于采煤机链轨架。
youdao