按下Cmd和Opt键的同时击这个三角形符号，可以折叠或展开所有层级的群组文件夹。

Hold down Cmd + Opt + click on the triangle icon will collapse or expand all level layer groups.

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全以色列在欢呼、吹角、吹号、击钹、鼓瑟、弹琴、奏乐之中，将上主的约柜接了上来。

And all Israel brought the ark of the covenant of the Lord with joyful Shouting, and sounding with the sound of the comet, and with trumpets, and cymbals, and psalteries, and harps.

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结果表明，优化后的TVC方案避免了弹体抬头的现象发生，提高了导弹击顶时的落角，可降低对战斗部的指标要求。

The results indicate that the optimized TVC scheme avoids rising of missile-body, and increases the impact angle, which reduces the requirement on the warhead.

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