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1·Drain line: the hydraulic components leaked oil into the return pipe or tank.

泄油管路：将液压元件泄露的油液导入回油管或油箱。

2·Outdoor drains are subject to freezing temperatures which can obstruct the drain line.

室外排水口在冰冻气温下可能会冻结并堵塞排水管。

3·When installing a drain line, use Series 909 air gaps on Model 909 backflow preventers.

在安装排泄管线时，在型号909防回流阀上采用系列909气隙。

4·Vent the air gap and drain line from the relief valve in accordance with code requirements.

按照规程的要求，排出安全阀气隙和排放管道的空气。

5·A proper drain line connected to the valve outlet and run to a safe place of disposal must be installed.

必须安装一个适当的排泄管道，连接阀门的出水口，并且流向安全的地方。

6·Opening sealed subsurface drain line manways to attempt to localize the source of tritium into the system.

打开密封的地下水疏水管道人孔以试图定位进入系统的氚源。

7·The next day, Michael tells Abruzzi he needs help getting a bottle of drain line root control. Sooner than later.

第二天，Michael告诉Abruzzi他需要他帮忙搞一瓶下水道除草剂，“越快越好”。

8·A drain line should be attached to the relief valve to channel any potential discharge to a safe place of disposal.

在安全阀上应该连接排水管道，将任何可能的排放引导到安全的处置地方。

9·A drain line should be attached to the relief valve to channel any potential discharge to a safe place of disposal.

应该在安全阀上连接一个排放管道，以将任何潜在的排放引导到进行处置的安装位置。

10·Marco Products Company will continue to provide sewer and drain line cleaning tools of the highest quality at the most reasonable price.

美国马可公司将继续以最合理的价格提供最高质量的管道疏通机全系列产品。