There is already some evidence suggesting that the ringed seal, a phocids species that is similar in size to the harbor seal, may also use a maternal foraging strategy.

已经有一些证据表明环斑海豹，即一种体型与港海豹相似的海豹科物种，可能也会使用母性觅食策略。

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For motor frame size 180 and above, the inner mechanical seal shall be constructed with a solid block carbon rotating seal face and a solid block silicon carbide stationary seal face.

用于尺寸180以上的电机机架，内置的机械密封结构应该采用一块整体结晶碳旋转密封面和一块整体结晶碳化硅固定密封面。

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Mechanical seal repair process more complicated, after assembly to ensure no leakage of the mechanical seal, mechanical seal technology essential check size.

机械密封检修工艺较为复杂，要保证组装后的机械密封无漏泄，机械密封技术尺寸的校核必不可少。

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Security camera footage from the aquarium shows the seal making several unsuccessful attempts to scale the barrier fencing, hampered by her sheer size and physical make-up.

BBC: Seal scales fence to reach pup at St Andrews Aquarium

Because of the tiny size, however, we had to jam them oddly far into our ear canals to get a tight seal no matter which tips we used (single and dual-flange options are offered).

ENGADGET: Ears-on with Klipsch's latest intra-aural headphone lineup: Image S4 (II) series, X7i