You should not deliberately firm your abdomen, although it does retain a degree of firmness naturally from the uplifting action in your torso.
你不能使腹部僵硬，尽管腹部在躯干向上时要保持一定程度的自然收紧。
So bagging Lower firmness and the content of soluble solids on the certain degree.
说明套袋能在一定程度上降低果实的硬度和可溶性固形物含量。
The basic training is just like the foundation of the skyscraper, the quality of which is decisive to the height and the firmness degree of the building.
基础训练就好比是摩天大厦的地基，地基的质量决定着大厦的高度及坚固程度。
Contrast and judge the fading and or dirty degree of colored specimen after firmness of dyeing test.
用以对照判定染色坚牢度试验后﹐试片及附布变褪色或染污之程度。
The pectin esterase (PE) activity was not obviously associated with the firmness. The activity of PG changed in a certain degree with fluctuation respiration and endogenous ethylene level.
多聚半乳糖醛酸酶活性与呼吸强度和内源乙烯的变化趋势较为一致，而果胶甲酯酶活性在整个贮藏期中由高到低变化较为平缓。
The pectin esterase (PE) activity was not obviously associated with the firmness. The activity of PG changed in a certain degree with fluctuation respiration and endogenous ethylene level.
多聚半乳糖醛酸酶活性与呼吸强度和内源乙烯的变化趋势较为一致，而果胶甲酯酶活性在整个贮藏期中由高到低变化较为平缓。
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