洒水车水泵泵壳出现裂纹、或者叶轮、倒叶损坏、或者水封破损,都会影响真空度,出现水抽不上来,或者水压过小的现象。
Sprinkler pump shell cracks, or impeller, leaf damage, or seal damage, will affect the degree of vacuum, water pumping, water pressure is too small or the phenomenon.
细叶百合的鳞茎在生长发育过程中一年仅形成1个侧生小鳞茎,且此鳞茎是下一年唯一能抽生花茎、进行有性生殖的鳞茎。
The bulb only vegetate one little adnation bulb during growth in 1 year and the little adnation bulb is the only one which can flower.
叶的甲醇抽提物活性高于氯仿抽提物和石油醚抽提物。
The insecticidal activity of methanol extract was higher than that of chloroform extract and petroleum extract.
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