机械密封英语

Mypressureissostrongbecaseofhighexpectationofparents.

Mypressureissohighbecauseofhighexpectationofparents.

About15kilometersawayfromtheseainasmalltown,80yearsofhistoryoftheOldSchool

你得说的详细点呀 针对你说的这些 我写几个吧 缸体：cylinder block, barrel阀：valve泵：pump 液压泵：hydraulic pump液压泵配件：hydraulic pump parts, spare parts of hydraulic pump马达：motor组合密封：seal kit连接块：landing配油盘：valve plate柱塞滑靴：piston shoe 如果你是需要配件的话，太多了，压根说不完。纯手打，望采纳。 ^_^

atownabout15kilometersfromtheseaaschoolwithahistoryofmorethaneightyyears