vacuum manifold

A few percent of the CO2 molecules in the air manage to find such electrons. When there is vacuum in the intake manifold, the vacuum holds the diaphragm up.

空气中的一部分co2分子会吸引那些自由电子。当进气歧管有真空存在时，真空便向上吸引膜片。

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This vacuum, called intake-manifold vacuum, varies as the operating conditions change.

这个真空叫做进气歧管真空.这种进气歧管真空随运转情况而变化.

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The Casimir energy is a kind of zero-point energy of quantized fields and can be considered as the energy of vacuum polarization of quantized fields due to the presence of boundaries, the curvature of the space-time manifold or some background fields.

Casimir能量是量子场的一类零点能，是由于边界的出现、时空的弯曲以及某些背景场的存在而引起的。

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In the roundpiston VV carburetor, the piston is moved by intake-manifold vacuum.

在圆形活塞的VV化油器中, 活塞是由进气歧管真空移动的.

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When there is vacuum in the intake manifold, the vacuum holds the diaphragm up.

当进气歧管有真空存在时, 真空便向上吸引膜片.

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