这和专业简仓有部分联系，因为专业简仓制约了实用性的工具和实际工作者的想象力。
That was partly to do with professional silos, which limited both the tools available and the imaginations of the practitioners.
此外央行还提到准备金工具可能形成资产负债表效应且信号意义较强，所以降准受到的制约较多。
In addition, PBC also mentioned that the reserve tools may form a balance sheet effect and the signal sense is relatively strong, so there are more restrictions on RRR cuts.
金刚石薄膜与硬质合金基体间的附着力较低一直制约着金刚石薄膜涂层工具的商业化生产和大规模应用。
The commercial production and applications of diamond coating tools a re always restricted by the poor adhesion power between diamond coatings and cemented carbide substrates.
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