wrot

"Primary uses for wrot brass are for ball valve stems and balls, and iron valve stems. a forging grade of brass is used in ball valve bodies and pieces." Dynamic Analysis of a Spindle of Pilot-operated Solenoid Valve

黄铜的主要用途是球阀阀杆和球体，和铸铁阀门的阀杆。可锻黄铜可用于球阀阀体和断口部件。两级先导式电磁阀主阀芯动力学分析

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If it _______ ( rain ) tomorrow , we will have to stay at home.

填wrote.谈论已故人的事迹应用过去式.

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In ‘She wrote a letter ’, the verb ‘wrote ’ is transitive and the word ‘letter ’ is the direct object.

在She wrote a letter一句中，动词wrote是及物动词，letter一词是直接宾语。

《牛津高阶英汉双解词典》

Wrot coper is exclusively used for fittings.

铜专门用作配件材料。

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Wrot copper performs well in high temperature applications and is easily joined by soldering or brazing. Wrot coper is exclusively used for fittings.

在高温环境下，铜也表现很好，而且易于通过焊接或钎焊进行连接。铜专门用作配件材料。

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