逐滴小心地加入30%的过氧化氢，每加一滴均要等反应平息后再次加热。
Cautiously add, dropwise, 30 percent hydrogen peroxide, allowing the reaction to subside and again heating between drops.
用含有谷氨酸二烷基酯双链型表面活性剂的W/O乳状液，采用逐滴聚结法测定了乳状液的分层包藏量。
We measured the occlusion of W/O emulsion with glutamic acid dialkyl esters by the coalescence of individual drop.
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