Less clear, largely because no one has bothered to look, are the emissions over its entire production life cycle - that is, from the moment a well is plumbed to the point at which the gas is used.

而因为没有人在意去查究，天然气整个生产周期(也就是说，从天然气井中直到使用它的地点)中的排放量却不太明确。

youdao

Compressor in many industrial equipment, the difference between the purchase cost only account for the total life cycle cost less than 10% of more than 80%, and the cost is low power consumption.

压缩机区别于很多工业设备，其购置成本只占其全生命周期成本的10%不到，而80%以上是耗电成本。

youdao

Then a simulation of cycle discharge performance was carried out by using the cycle life test data got at high-temperature. The error of discharge voltage was less than 0.6%.

然后结合已有的高温循环寿命测试数据对电池循环放电性能进行了仿真，得到了放电电压误差不超过0.6%的结果；

youdao

And the need to invest in six-figure chunks often means coming on board later in a startup's life cycle, when there's less risk and more ability to put large amounts of money to work.

FORBES

Opting to procure a less capable medium-lift replacement that is more manpower intensive, and which is projected to have greater life cycle costs, is neither operationally or fiscally responsible.

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