结果表明，联苯菊酯的持效性比毒死蜱的长。
The results showed that bifenthrin was more stable than chlorpyrifos.
试验结果表明：硼酸木材防护剂对白蚁的毒性并未受到老化处理的影响，具有良好的稳定性和持效性。
It was suggested that borate treated wood had satisfyingly stable and long-last toxicity against termites, which was not compromised by ageing.
如果只是小覆盖面的话，这还不难；若是大面积的电池，保持其一致性(即保持效率)就不容易了。
This is relatively easy when covering a small area, but it is difficult to maintain the uniformity, and thus the efficiency, of the cells over large areas.
本品是生物制剂，具有防效高、渗透性好、持效期长的特点，并且低毒，对环境友好，对草坪安全。
This product is a biological agent, with anti-efficient permeability, Chi Xiaoqi long features, and low toxicity, environmentally friendly, safe on the lawn.
本品是生物制剂，具有防效高、渗透性好、持效期长的特点，并且低毒，对环境友好，对草坪安全。
This product is a biological agent, with anti-efficient permeability, Chi Xiaoqi long features, and low toxicity, environmentally friendly, safe on the lawn.
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