下游

Techniques:Ethylene glycol is the most important downstream products of ethylene. Although the domestic glycol production has been increasing, demand still overweighs supply. Every year there are plenty of imports to satisfy the great domestic market demand.

工艺技术简述：乙二醇是乙烯最重要的下游产品，虽然国内乙二醇产量虽呈逐年递增趋势，但仍然长期处于供不应求状态，每年都有大量的进口，国内市场基本依靠进口满足需求，市场供求矛盾较大。

Forwarding information is obtained by label in MAC layer and is piggybacked in Request-acknowledgement frame. Clear to send handshake of the downstream node was triggered by RACK that made the data frame transmit consecutively across multi-hop.

在MAC层通过标签获取转发信息并携带在请求－应答帧中发送，触发下游节点的清除发送帧握手，使得数据包多跳连续转发；连续转发概率根据业务类型和节点数据包队列占用率确定，实现了区分服务，避免了节点队列溢出。

We concluded that the atmospheric condition starting from July to September potentiates the impact of chlorine releases, particularly for those downwind areas, such as Taya, Taichung county.

一年中的7-9月，其大气条件会造成较大的泄漏危害范围，在此季节中，季节风为西南风，风向下游的台中县大雅乡是风险机率较高的区域。

The workers rafted their equipment down the river.

那些工人把他们的装备用筏子运送到下游。

The paper said the man disappeared under the water for about four minutes, before reemerging 100 meters downstream

报纸上说该男子在水下消失了大约4分钟后，在下游100米处浮出水面。

The activities of TotalFinaEIF are divded into four business divisions;Upstream,(exploration and production of crude oil and natural gas);Trading and Midstream Gas and Electrcity;Downstream(relining distrbution of oil products and imternaeional trade in crude oil and petroleum products) and Chemicals.

道达尔菲纳埃尔夫公司的业务可分为四个业务领域：上游（原油和天然气的勘探生产）；贸易、天然气与电力；下游（炼油、成品油销售、原油和各类成品油的国际贸易）和化工。

Those problems not only restrict the development of the local economy and exacerbate the contradiction among population, food and environment, but also bring about such problems as flood and drought to the middle and lower reaches of the Changjiang and Zhujiang Rives.

这不但制约着当地的经济发展，使人～地～生态环境三者的矛盾日益突出，还给位处其下游的长江、珠江中下游地区带来了诸如洪涝灾害不断加剧的环境问题。

Someone sabotaged the lower bridge, and you're the only stranger around.

有人破坏了下游的那座桥，而你是这里唯一的陌生人。

Oh, it's you. Someone sabotaged the lower bridge, and you're the only stranger around.

噢，是你。有人破坏了下游的那座桥，而你是这里唯一的陌生人。

Flood fears in the Midwest are now moving downriver. The Illinois Army National Guard is helping with sandbagging duties in Quincy.

威胁中西部的洪水现在正在向下游转移，伊利诺斯州陆军国民警卫队目前正用沙袋在昆西地区进行抗洪。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。