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understanding the semantic web and its eduactional implications

Bạn có muốn học tiếng anh tại nhà mà vẫn đạt được hiệu quả học tập? Bạn có một vài người bạn cùng chung sở thích và nhu cầu học tiếng anh, tuy nhiên các bạn thích học tại nhà chứ không muốn đến trung tâm? Do công việc bận rộn, bạn khó thu xếp thời gian đến trung tâm để học được. Nếu bạn thuộc một trong những trường hợp trên, hẳn bạn muốn tìm gia sư tiếng anh tại Hà Nội và TP Hồ Chí Minh.

Specifications of SM11R1 Specs_Acc_Audio Dimensions 80.0* 60.0* 40.0mm Weight about 225g Color black PTT Key available Emergency Key none Connector RJ45 Microphone Sensitivity -45±3dB@1kHz 3.0V 2.2K;0dB=1V/Pa IP Rating IP54 Operating Temperature -30~65℃ Storage Temperature -40~85℃

It is placed on the desktop in the office for dispatching. Specifications of SM10A1 Specs_Acc_Audio Dimensions 107* 65* 148.6mm Weight about 170g Color black PTT Key available Emergency Key none Connector 10-pin connector Microphone Sensitivity -40±2dB@1kHz 3.0V 2.2K,0dB=1V/Pa IP Rating none Operating Temperature -30~70℃ Storage Temperature -40~85℃

The EHS20 is a receive-only earpiece fashionable and comfortable to wear Specifications of EHS20 Specs_Acc_Audio Weight about 16g Color black PTT Key none VOX none Emergency Key none Connector 3.5mm

Use Ex protection design which complies with ib ⅡB Ex standards. Specifications of BL1703-Ex Specifications Dimensions(H×W×D) mm 115.73 mm x 56.6 mm x 22.3 mm Weight about 160.5g Nominal Capacity 1700 mAh Nominal Voltage 7.4V Operating Temperature 0℃ to 45℃(charge); -20℃ to 60℃(discharge) Storage Temperature -20℃ to 60℃ (for one month); -20℃ to 45℃ (for three months); -20℃ to 25℃ (for one year) Battery Life Cycle 400 times Anti-explosion levels ATEX and FM

Quality Hydraulic Screw-in Cartridge Valves Our company offers a range of high-quality hydraulic valves, including directional valves, flow control valves, pressure control valves, and solenoid valves. Our screw in hydraulic cartridge valves are designed with unique characteristics that achieve a 95% opening rate and a 90% closing rate, providing excellent on-off performance. Our valves have a variance of pressure swing not exceeding ±0.1MPa with small and stable system control fluctuation within ±3% F.S., which is leading domestically. With a lifespan of over 1.2 million times under rated pressure and flow, our screw-in cartridge valves are internationally recognized for their durability. Our valves also have advanced EX-Factory cleanliness, leading internationally. Our flow capacity under the same pressure of 7 bar is stronger and leading domestically. Choose our hydraulic valves for reliable performance and long-lasting durability.

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