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汉语拼音：shuǐ xì

河川流域内，以干流为主，包括直接或间接流入干流的大小支流及与河流相通的湖泊、沼泽与地下暗河的总体。如长江水系。

1. 某一流域内的干流及流入干流的所有支流，包括湖泊、沼泽、地下暗流在内的总称。

   碧野 《富春江畔》：“ 富春江 上游左右汇纳 兰溪 的绿水和 新安江 的清流，而 兰溪 的上游是 婺江 ，均属 钱塘江 水系。”

• Drainage was to the north and individual channels bifurcate in that direction.

  整个水系向北排水,各个河道朝该方向分叉.

• The endless variations of drainage pattern make descriptive characteristics difficult.

  水系型式的无限变化给描述特征带来了困难.

• Drainage symbols are in blue.

  水系符号是蓝色的.

• The difference is mainly in the tone not in the drainage pattern or landform.

  所不同的主要在色调,而不在于水系型式或地形.

• During the Pleistocene Ice Age , the ancient drainage systems were almost completely rearranged by glaciation.

  在更新世冰期, 古水系常被冰川作用完全改造.

• A strike - valley sand is deposited in the drainage course of a subsequent stream valley.

  走向谷砂岩是在次生河谷水系中沉积的.

• Europe is a history of the city from the water, churches etc.

  欧洲城市的形成是有历史的,从水系 、 教堂的演化等等.

• Also consider hydrophilic or hydrophobic membranes, temperature, flow rate, sterilization needs.

  还要考虑选择水系还是有机系滤膜, 温度, 流速, 和是否需灭菌等因素.

• Is located in Haihe River valley, more developed river systems.

  地处海河流域, 水系比较发达.

• Grand View Park lake water around the whole area.

  大观园内湖泊水系通达全景区.

• That part of stream discharge from ground water seeping into the stream.

  是指由地下水外渗进入水系中的那部分.

• So we can control the reuse water system with the database.

  因此我们能用～控制重复使用水系数据库.

• In this Paper, Composition, storage stability application of polyurethane emulsion are inducted.

  介绍了“水系一聚氨酯型”乳液的组成 、 贮存稳定性、应用等.

• Second, urban areas of ecological system works.

  二是主城区生态水系工程.

• Under normal conditions, river systems often division flows.

  一般情况下, 河川水系常有主支流交汇之情形.