双积分是一种常用的转换技术，具有精度高，抗干扰能力强等优点。
Double integral is a kind of common conversion technology, with high precision, strong anti-jamming capability, etc.
在燃具上使用双控燃气稳压阀，燃烧工况稳定，适应性强，安全性高。
Applying this valve to gas appliance shows stable combustion condition, strong adaptability and high security.
双滑块静音品牌线性导轨，具有刚度强、承载能力大、定位精度高、传动平稳、精度保持性好等优点。
Big brand linear guide rails with double-slider and sound off function have the features of satisfactory stiffness, good loading capacity, steady transmission and high precision assurance.
因此，ELISA间接法敏感性高、特异性强和重复性好，可代替ELISA间接双抗体夹心法以检测RV血清抗体。
Thus, indirect ELISA proved to possess high sensitivity, specificity and reproducibility, it can be used to replace indirect sandwich ELISA for the detection of serum antibody against RV.
结论建立的双抗体夹心elisa检测MP抗原具有快速、简便、灵敏度高、特异性强等优点。
Conclusions Antibody-sandwich ELISA for detection of mp antigen is simple, rapid, sensitive and specific.
双块式无碴轨道是一种适用于客运专线的新型轨道结构，它具有高平顺性、高稳定性、刚度均匀性好、结构耐久性强和少维修的特点。
Double-block ballastless track applied on PDL is a new track structure. It is a low maintenance durable track structure with high stability, high geometric regularity and uniform track stiffness.
TL 494芯片功能强，工作频率高，通过外扩简单的硬件电路即可实现输出电压电流的双闭环控制。
The chip of TL494 functions very strong, and its operation frequency is high. The double closed loop control of output voltage and current is realized by integrating some simple hardware circuit.
TL 494芯片功能强，工作频率高，通过外扩简单的硬件电路即可实现输出电压电流的双闭环控制。
The chip of TL494 functions very strong, and its operation frequency is high. The double closed loop control of output voltage and current is realized by integrating some simple hardware circuit.
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