频繁的

It's disbennifit to become protected film if change the velocity of flow frequently.

改变水流速不利于在冷却器材料表面形成保护膜，而保护膜对于防腐蚀是至关重要。

It also put forward the connectible coefficient to simplify the description of the network, especially whose connection property changed frequently.

本文进一步提出利用路系数表示路性方法，特别适于描述性变化较路。

Problems are especially common among those who do heavy or frequent manual handling and lifting tasks, whether in manufacturing, construction, meatpacking or nursing care.

问题是类似，特别是那些做沉重或手工操作和吊装任务人中。

To avoid the diseconomy caused by frequently starting and stopping of the generators, a rule of “capacity limit” is adopted to coordinate the bidding behaviors.

为了避免机组启停造成不经济，本文还提出采用“容量限制”规则对报价进行约束。

With the discussion ofSection 2.3 in this paper, we believe that the frequent fluctuations and rapid change of the climate existedin the stage ofrelatively warm and humidin MIS3 Chaerhan late .

结合本文2.3节讨论，我们认为在MIS3晚期察尔汗湖区相对暖湿阶段中也存在气候波动与快速变化。