这个领域一直应受那些很难导出可靠统计学的结论的小规模，不透彻的研究困扰着。
The field is plagued by small, weak studies that are hard to turn into statistically robust conclusions.
但目前我国大跨度钢拱桥的理论研究仍不透彻，且存在诸多争议。
However, the theory research of long-span steel arch bridge of our country is not thoroughly, and disputed.
它是通过重组其它染色体上的DNA序列来加长端粒的，我们对其研究的并不透彻。
The less understood ALT pathway lengthens telomeres through recombination with DNA sequences from other chromosomes.
它是通过重组其它染色体上的DNA序列来加长端粒的，我们对其研究的并不透彻。
The less understood ALT pathway lengthens telomeres through recombination with DNA sequences from other chromosomes.
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