水压

水壓
shuǐyā
water pressure

CEDICT

water pressure

Wiktionary

水的压力。即静止的水，其单位面积上所受重力的大小。

重編國語辭典

Entry Composition

1 水 shuǐ
  1. water
  2. (after a name) ... River
  3. to swim (used mostly in 会水 huìshuǐ and 水性 shuǐxìng)
  4. (coll.) lacking in substance; shoddy
  5. (bound form) additional cost; extra income
  6. classifier for washings of a garment
2 压 yā
  1. to press
  2. to push down
  3. to keep under (control)
  4. pressure