Myostatin is a regulating protein that alters the rate of muscle growth, creating a genetic muscle ceiling.

肌抑素是一种调节蛋白，通肌肉改变肌肉增长率。

Later the clapper was abandoned, and bronze bells were played by being hit on the outside with a hammer.

之后人们舍弃了铃舌，改用槌子敲击铜钟。

When disturbed, the ants bang their abdomens against the outer wall of their stiff nest to sound in alarm.

当被惊扰时，这些蚂蚁用腹部敲击硬的巢穴来发出警报。

You and five friends can walk around the outside of the main pod.

你可以和五个人一起徒步走在舱的边缘。

Or, really, any other muscle that forms the outer wall of the heart?

或者，实际上，形成心脏的其他肌肉是什么？

Finally, the complex viruses have a combination of icosahedral and helical shape and may have a complex outer wall or head-tail morphology.

最后，复合型病毒兼具二十面体和螺旋对称结构，可能有复杂的或头尾形态。

This method produced hollow bronzes, with thin walls, which allowed larger statues to be produced, improve the qualities of the cast, and reduce the amount of expensive metal required.

这种方法作的青铜器是空心的，薄，可以作更大的雕像，提高了铸质量，减少了所需的昂贵金属的数量。

The inside is plain but the outside has been decorated with gold and bronze inlay-pairs of birds face each other, each sporting exaggerated claws against a background of geometric shapes and decorative spirals.

内没有任何装饰，则镶嵌黄金与青铜，并绘有数对相向而立的鸟，挥舞着它们大得夸张的鸟爪，而背景是一些几何图案及螺旋纹饰。

Aldosterone increases the number of sodium channels and the number of potassium channels on the lumen side of the principal cell as well as sodium-potassium pumps on the basolateral side of the principal cells.

醛固酮可以增加细胞内钠通道和钾通道的数量和细胞钠钾离子泵的数量。