不过，这两种分子具有与天然蠕虫粘液一样的化学基，和相似的电荷数。

These, however, had the same crucial chemical groups as their natural counterparts and similar electric charges.

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标准普尔500指数（S&P 500）和纳斯达克综合指数（NASDAQ Composite Index）表现相似，在近日的成交中下跌几个点。

The S&P 500 and the Nasdaq Composite Index behaved similarly, shedding a handful of points in recent trading.

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通过控制方程的相似律分析，可预言混合对流传热由阿基米德数和几何因子控制。

With similarity considerations on governing equations, the heat transfer of mixed convection can be predicted to be controlled by Archimedes number and geometric factors.

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