plant growth的用法和樣例：
例句
- Magnesium is the nutrient element in plant growth.
鎂是植物生長(cháng)的營(yíng)養要素。 - "A-bomb, H-bomb and nuclear-powered submarine"
兩彈一艇 - Farmers burn the field to encourage new plant growth.
農民們?yōu)榱舜龠M(jìn)作物生長(cháng)，焚燒土地。 - Azotobacter and Azospirillum also have plant growth regulation activity besides fixing N2.
固氮菌和固氮螺菌除固氮之外，也有調控作物生長(cháng)的作用。
