Marx's view on this issue shows his historic materialism not only has strong theoretical logic in the plane of historic nature, but also is rich in content in the plane of historic operation.

马克思在这一问题上的观点显示了其历史唯物论除了在历史本质论层面具有强劲的理论逻辑之外，在历史运作论层面同样具有丰富的内容。

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Fundamental plane check includes the measurement of concrete moisture content and roughness.

基层检查包括混凝土含水率的测定、平整度的测定。

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Based on these opinions, this essay forecasts the changes in plane design circumstances, content, and direction in the 21st century, and tries to work out corresponding measures to deal with them.

本文试从上述观点出发，展望21世纪平面设计环境、内容、方向的变化，并以文献资料为基础，试图阐述对应这些变化的平面设计教学内容与方向。

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In another model being pushed by incumbents in the in-flight entertainment business, airlines install a plane-wide content-streaming system with an array of movies, TV shows, games and other content, generally alongside broader Internet access.

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As a consumer I feel comfort in reading posts which are honest and un-policed (with the exception of just plane inappropriate or explicit content).

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They accomplish this by synching the the news sources you follow, so that the content is on your mobile device when you are off the grid, perhaps on a plane or a train.

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