例句與造句

1. Powell's appearance was unlikely to spark any grass-roots pressure on the Kremlin.
2. Grass-roots pressure from such groups is a formidable influence on Congress.
3. Root pressure is often high in some deciduous trees before they leaf out.
4. Root pressure may be important in refilling the xylem vessels.
5. Foraminal stenosis at this joint is the most common cause of cervical nerve root pressure.
6. It's difficult to find root pressure in a sentence. 用root pressure造句挺難的
7. However, in some species vessels refill without root pressure.
8. Root pressure is caused by active distribution of mineral nutrient ions into the root xylem.
9. Root pressure is studied by removing the shoot of a plant near the soil level.
10. If a pressure gauge is attached to the cut stem, the root pressure can be measured.
11. Xylem sap will exude from the cut stem for hours or days due to root pressure.
12. Root pressure is caused by this accumulation of water in the xylem pushing on the rigid cells.
13. Such bleeding is similar to root pressure only sugars, rather than ions, may lower the xylem water potential.
14. Maples use root pressure each spring to force sap upwards from the roots, squeezing out any air bubbles.
15. In 1880 he stated that the movement of water in plants is due to both transpiration and root pressure.
16. But the delay gave free trade opponents such as the AFL-CIO the time to build grass-roots pressure against renewal.
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