Abstract: Provided in the present disclosure is a method for using a four-plasmid system to prepare modified immune effector cells. The method comprises: forming a lentivirus by using four plasmids within 293T cells, extracting and obtaining the lentivirus, then transfecting immune effector cells by using the lentivirus, and expressing a chimeric antigen receptor. Also provided in the present disclosure is a use of the immune effector cell obtained by using the described method and of a composition containing the immune effector cell.

Abstract: An aluminum alloy is provided. Based on the total weight of the aluminum alloy, in percentage by weight, the aluminum alloy includes: 11-15% of Zn; 7.5-9% of Si; 1.2-2% of Cu; 0.3-0.5% of Mn; 0.05-0.3% of Mg; 0.1-0.2% of Ni; 0.001-0.04% of Sr; 0.05-0.3% of Ti; 0.01-0.15% of Fe; and 72.51-79.79% of Al.

Abstract: Provided in the present disclosure is a method for using a four-plasmid system to prepare modified immune effector cells. The method comprises: forming a lentivirus by using four plasmids within 293T cells, extracting and obtaining the lentivirus, then transfecting immune effector cells by using the lentivirus, and expressing a chimeric antigen receptor. Also provided in the present disclosure is a use of the immune effector cell obtained by using the described method and of a composition containing the immune effector cell.

Abstract: Provided in the present disclosure is a method for using a four-plasmid system to prepare modified immune effector cells. The method comprises: forming a lentivirus by using four plasmids within 293T cells, extracting and obtaining the lentivirus, then transfecting immune effector cells by using the lentivirus, and expressing a chimeric antigen receptor. Also provided in the present disclosure is a use of the immune effector cell obtained by using the described method and of a composition containing the immune effector cell.

Abstract: A magnesium alloy with high thermal conductivity, an inverter housing, an inverter and a vehicle are provided. Based on the total mass of the magnesium alloy with high thermal conductivity, the magnesium alloy with high thermal conductivity includes: 2.0-4.0 wt % of Al, 0.1-0.3 wt % of Mn, 1.0-2.0 wt % of La, 2.0-4.0 wt % of Ce, 0.1-1.0 wt % of Nd, 0.5-2.0 wt % of Zn, 0.1-0.5 wt % of Ca, less than 0.1 wt % of Sr, less than 0.1 wt % of Cu, and magnesium.

Abstract: An embodiment of the present disclosure discloses a processing method and a system of a mobile terminal. The method comprises: receiving a card slot ejecting command when determining that the card slot is dosed; generating a control message according to a card slot ejecting command, and sending the control message to a mechanical device; and ejecting the card slot out through a first sensor of the mechanical device. The mechanical device automatically controls the ejecting of the card slot, and it is not needed to manually take out the card slot by using a card pin. The operation is convenient, and time is saved.