It remains to be seen whether fruit juices can improve vascular health, they report in a scientific journal.
他们在一篇科学期刊中称果汁是否可以促进血管的健康仍需进一步观察。
It is pointed out that the scientific assessment and comprehensive considerations on influence factors should be made so as to decide whether the internal coating is used or not.
但长输天然气管道是否应用内涂层，应在严格的评估和对各种因素进行综合考虑后才能最后确定。
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