It also faces reduced service contracts and other ancillary revenues as other legacy systems approach end-of-life status.
波音公司的服务合同及配套收入也会减少，原因是其它现有设备的寿命即将到期。
It also faces reduced service contracts and other ancillary revenues as other legacy systems approach end-of-life status.
波音公司的服务合同及配套收入也会减少，原因是其它现有设备的寿命即将到期。
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