position-independent英pə'zɪʃnɪndɪp'endənt美pə'zɪʃnɪndɪp'endəntBNC⁷⁹⁰⁷⁶⁺¹¹ 基本例句 不依赖于位置的 The purpose of this paper was to construct mammary gland expression vector with position-independent manner, which can protect transgenes from genomic position effects and express independently. 本文旨在建立位点不依赖性乳腺特异性表达载体,以克服转基因动物生产中因位置效应影响而导致的表达效率低下的问题。 dictall