shortened section 中文意思是什麼
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Mr. cheng siu - bun of the landscaping section said, we generally spray rotenone on campus once every three months. in pest - infested areas or during the mosquito breeding months of april and may, it may be shortened to once a month
園藝組鄭兆斌先生說：我們大概每三個月噴灑一次魚藤滅蟲藥，但某些地方如蟲患嚴重，或者正值四、五月的蚊蟲滋生期，會增加至每月一次。 -
It was found that before the plating, there is section time to gestating, that we call the " gestating time " and the plating was ended spontaneously after some time, named " plating time ". the analysis of the solution after plating indicated that the too much decrease of ph value results in the reaction to be stopped. the plating time was shortened when the ph and the temperature of the bath were increased
結果表明，鍍液ph浙江大學碩士學位論文范啟義2003年3月摘要值、施鍍溫度提高，由於反應的速度加快，使反應時間縮短；硫酸銅濃度提高，有助於加快反應速度，從而縮短反應時間； edta濃度提高，使鍍液穩定性升高，對反應時間的影響等效于硫酸銅濃度的降低；而甲醛濃度提高，雖然反應的速度加快，但由於可用於還原的量增加，因此反應時間增加；裝載量提高，因能鍍覆的表面積增加，使反應時間縮短。
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