英语翻译由于考虑到尽量先让你们那边的工程师出差去客户那,实在不行的话再由我们这边的工程师出差,所以在SPS里把德国给中国的发注金额减去出差费用,请确认金额.

considering it would be better that your engineers travel to the customer first,if it is really does not work, then we will try again.so we cut the business trip cost from SPS which German note to china.please double check(/confirm) the amount of money.
附：楼主这个若是用邮件交流，最好口语化，若是正式的文件，有些专业 的词汇就要斟酌一下了。

Due to consider to let you travel to that customer engineers, and then travel by our side, so the engineer in the German to China in the SPS hair note amount minus the business trip expenses, please confirm amount.

Taking into account the engineers over there as far as possible to let you travel to the customer that really does not work,then re-engineer a business trip from our side,so SPS where the German note to the Chinese hair minus the amount of travel costs,please confirm the amount.