In the special case in which W'is zero, the mechanical energy remains constant or is conserved.

When the friction force acts alone, the total mechanical energy is not conserved.

当只有摩擦力作用时, 总机械能就不守恒.

It is important to remember that kinetic energy is not conserved in the collision.

必须记住,在碰撞中动能不守恒.

However, momentum is always conserved in a collision, whether or not the collision is elastic.

然而, 不管碰撞是不是弹性的, 在碰撞过程中动量总是守恒的.

Under these conditions, the total mechanical energy remains constant, or is conserved.

在这种条件下, 总机械能保持不变或机械能保存.

He conserved his energy for the game.

他为比赛而养精蓄锐.

How to become a smarter consumer, investor, and conserver.

怎样成为更聪明的消费者 、 投资者和保存者.

It also blocks that part of the body's salt regulating system that conserves salt.

另一方面,它可以阻断身体会导致体内盐分滞留的盐分调节系统.

It conserves resources and minimises physical and visual pollution throughout the lifecycle of the product.

让产品在整个生命周期内减少对资源的浪费,降低对自然的破坏并且不要产生视觉污染.

All creatures in the wonderful world shift between death and birth. Only Tao conserves endless life.

有色世界的物种,它们都是有生有死的, 只有道才保有无限的生命.

I was surprised to find that the strong man liked to eat conserves.

我很惊讶地发现这个强壮的男人喜欢吃蜜饯.

Conserves addresses through application port-level multiplexing.

透过埠号层次的多工技术来保留地址.

It conserves natural resources.

首先,自然资源得到保护.

Respecting these principles conserves the quality and the specificity of each grape-variety.

遵守这些原则就能保证品质和维持每种葡萄的差异特性.

The antimuon decay also conserves the total light and heavy lepton numbers.

在反μ子衰变中,总轻轻子数和总重轻子数也是守恒的.

Finally, this text analyses abroad and the domestic building instance of energy-conserving wall.

最后分析了国外和国内节能墙体建筑实例.

By conserving water and fossil fuels, we will be helping to protect the wildlife around ourselves.

以节约用水、矿物燃料, 我们将协助保护野生动物的周围.

Conserving energy is cool and as simple as the flip of a switch.

节约能源很时尚而且就像按开关一样简单.

Meanwhile, Citigroup shed some businesses to generate additional cash, while conserving money by slashing its dividend.

与此同时, 花旗还出售了部分业务以获得更多资金, 同时削减了派息以节约成本.

He is merely conserving his strength.

他只是在保养精神.

Is climate change conserving a concern for you.

气温变化引起你的关心了吗?