The star's pulsations cause it to brighten and dim every six minutes.

这颗恒星的搏动导致它每六分钟变亮或变暗

A pulsation of the heart; a heartbeat.

心动描记器上标明心跳次数。

A single complete pulsation of the heart.

一次完整的心脏跳动。

Irregular, rapid beating or pulsation of the heart.

心脏跳动，心脏博动跳动或博动，如心脏。

We feel the long pulsation, ebb and flow of endless motion.

我们感到长久的悸动，和永无止境的潮起潮落。

Usually, at this point, a pulsation may be felt at the end of the spine.

这时通常会在脊椎尾部感到一种搏动。