She carried a quantity of matches in an old apron, and she held a bundle of them in her hand.
她用一条旧围裙兜着许多火柴，手里也拿着一扎。
The quantity of each bundle is fixed for the same lot.
同票的每捆数量都是一定的。
Single - or multiple leakage test, by suppressing media filling quantity is small, if the tube bundle leakage, easy to from the pressure gauge on the fast show pressure drop.
单管或多管试漏时，因打压介质充填量小，若管束有漏点，易于从压力表上快速显现出压降。
Single - or multiple leakage test, by suppressing media filling quantity is small, if the tube bundle leakage, easy to from the pressure gauge on the fast show pressure drop.
单管或多管试漏时，因打压介质充填量小，若管束有漏点，易于从压力表上快速显现出压降。
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