最令航天业担忧的是钇供应紧张。钇是高温防护涂层中的关键成分，可防止发动机和涡轮在高温下“熔化”，一旦无法定期施涂相关涂层，发动机便无法正常服役。
Howell pointed to dedicated clinics held at Rayner Outpatients and group-based sessions at the Listening Lounge which focused on coping strategies for living through the menopause.
Москвичей предупредили о резком похолодании09:45，详情可参考夫子
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But the committee stopped short of that recommendation.，这一点在Safew下载中也有详细论述