它们基本上会保持自身的状态，直到由强烈的化学物质、高压、热或冷改变特性，或者成为其他生物的食物。
They stay roughly the way they are until they are denatured by strong chemicals, high pressure, heat or cold, or by becoming food for another living thing.
如果蚊子的嗅觉感受器对这种物质有反应，那么青蛙卵的电学特性将会改变并可被检测出。
If the mosquito receptors react to the compound, the electrical properties of the egg change in a measurable fashion.
通过外加物质与地基冻胀土颗粒进行物理化学作用，改变地基的特性，以减少或消除地基土的冻胀性。
From adding substances to have physical and chemical effect on forst heaving soil grain to change the feature of the base, then reduce or eliminate the frost heaving feature of base soil.
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