They compare average temperatures at any given time and place to a long-term average, or base period, for each area.
在每个地区，他们都用一个时间点的平均气温和长期或者一段时间内的平均气温进行比较。
"Whenever you work at a company for a period of time, you begin to build a power base," says Dr. Potter.
“无论何时，你在一个公司工作一段时间，你开始建立一个权力基础，”波特博士说。
The 30 to 50 American troops stationed at Point Alpha were on call 24 hours a day for six weeks at a time and were rarely permitted to leave their base during that period.
在阿尔法哨所有30—50名美军人员，他们24小时执勤，每六周轮换一次，在此期间基本不允许离开基地。
If he's able to get the APC to your base, and keep the engineer alive, you are going to have a short period of time to kill the engineer.
假如对方能够让APC到达游戏玩家你的基地，并且保持工程师存活，游戏玩家你将有一小段时间来消灭工程师。
When both the input conditioning and main-gate flip-flop are logically true, the main gate opens for a period of time that is determined by the timer base divider.
当输入转换和主控门触发器同时为逻辑真时，主控门打开一定时间，这个时间由时基分配器决定。
Pavilions were prefabricated, mounted and assembled in a short period of time - the base being a group of metallic tubes screwed together.
展馆在很短的时间内进行预制、安装和组装——该基地用一组金属管拧在一起。
The welding current, arc voltage, preset current, the period and ratio of pulse, base current, down slope time, gas pre and post flow time are sampled, calculated and controlled by microprocessor.
单片机对焊接电流、电弧电压、电流给定、脉冲周期、占空比、基值电流、收弧电流衰减时间、前气和后气时间等焊接参数进行采样、计算和控制。
The article illustrates the water supply and demand conditions in different period of time on the base of water resources analysis in Cixi city.
通过对全市水资源调查分析基础上，计算了不同时期全市水资源的供需状况。
It points out that mutual value is the base for the parties to merge. The profit of the merged enterprise will not be made until a certain period of time.
研究发现，共同价值是双方实现各自并购战略目标的基础，企业并购收益需要经过一段时期才能实现。
Real GDP measures all final goods and services produced in a given time period, valued at the prices existing in a base year.
实际GDP指以不变价格或固定价格衡量的一国在一定时期生产的全部最终产品和劳务。
NASYN SiCO-24KT is specially formulated with silicone base fluids and appropriate additives to perform over an extremely long period of time.
是由硅酮基础油和适当添加剂调制合成并具有超长使用寿命的压缩机油。
This product has been formulated in a special base to release its nutrients over a prolonged period of time.
此产品已经制定了一个特殊的基地，释放了一个长时间的养分。
This product has been formulated in a special base to release its nutrients over a prolonged period of time.
此产品已经制定了一个特殊的基地，释放了一个长时间的养分。
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