The size and correctness of the necessary parameters for calculating the strength of passive earth pressure and total earth pressure are important factors for the success or failure of foundation pit support design and whether it is economical and reliable.

2.KP: refers to gold-plated jewelry.

Using the principle of electrolysis, a thin layer of gold is plated on the surface of jewelry made of silver or copper. In China's industry standards, the thickness of gold-plated layer is not less than 0.5um, even if it is thin, it must be greater than 0.05um, and gold-plated jewelry is marked as "GP" or "KP".

3. KP: KP test, the first two levels of Cambridge General Test 5, including KET and PET.

Developed by the Cambridge University Examinations Board (ESOL), the Cambridge General Band Five Examination (MSE) is one of the internationally recognized examination systems so far.

4. Multimedia project creation

KP is also a multimedia project "Sunshine Project" published by music composer and novelist Jin (Jin P) on 201/(Japanese: カゲロプジジ).

5, dust mask type

Among the dust masks, Class P is an oily dust mask and Class N is a non-oily dust mask. KP type is suitable for preventing oily dust, such as paraffin and jade oil.