a large amount of

A large amount of amorce was needed.

需要大的起爆剂。

By any yardstick, that’s a large amount of money.

用任何标准，都是巨大的金额。

A large amount of research results showed that plants show isohydric behavior when the plant hydraulic and chemical signals cooperate to promote the stomatal regulation of leaf water potential.

当植水力信号和化学信号共同作用促进气孔对叶水势的调节时，植对叶水势的调节表现为等水行为。

From 2003 to 2004, we collected a large amount of Nautiloid and Graptolite fossils in upper metamorphic formations of Mayigangri area and determined the age to be middle and Late Ordovician-Silurian.

羌塘南部地区发现有可靠化石依据的早古生代地尚属首次。