一个博士群里有人提问：一滴水从很高很高的地方自由落体下来，砸到人会不会砸伤？或砸死？

　　群里一下就热闹起来，各种公式，各种假设，各种阻力，重力，加速度计算，足足讨论了近一个小时 。

　　后来，一个不小心进错群的人默默问了一句：你们没有淋过雨吗 ？

　　人们常常容易被日常思维所禁锢，而忘却了简单也是直接的路。

微电同号：199-4270-7497

ALERTON VLC-1188C3  VLC1188C3

ALERTON VLC-1188C3  VLC1188C3

Alerton VLC-1188C3 Bactalk DDC Controller VLC1188C3

ALERTON VLC-1188 VLC1188 Gen 4 

Alerton VLC1188 Industrial Control System

Alerton VLC-1188 Bactalk Programmable Controller V2.04 DDC VLC1188 

Alerton VLC-1188

ALERTON VAV-SDC3  VAVSDC3

ALERTON VAV-SDC3  VAVSDC3

ALERTON VAV-SDC3  VAVSDC3

Alerton VAV-SD2A Field Controller with Room Sensor Hvac White

Alerton VAV-SD x1, VAV-SDC3 x1, VAV-SDS x2 4 CONTROLLERS

ALERTON VAV-SD  VAVSD

ALERTON VAV-SD  VAVSD

ALERTON VAV-SD (LBL-VAV-SD-D)

ALERTON VAViH-SD, VAV CONTROLLER with ACTUATOR

Alerton VAV-DD V4.02 DZ0000.BD4 BACtalk BT VAV-DDZ-K2-F

ALERTON VAV-DD  VAVDD

ALERTON TX-VAVI  TXVAVI

Alerton TX-VAVi Rev 1 Automation Controller w/ Belimo Actuator LM24-T AL Parts

ALERTON TX-VAV  TXVAV

ALERTON TX-VAV  TXVAV

ALERTON TX-VAV  TXVAV

Alerton TX-VAV Controller Lot of 8

Alerton TX-VAV Controller Lot of 4

Alerton TX-VAV Controller Kit (Honeywell)

Alerton TX-VAV Controller

Alerton TX-VAV Controller

Alerton TX-SA-DC Tux

ALERTON TX-SA-651  TXSA651

ALERTON TX-SA  TXSA

Alerton TX-SA Controllers (LOT of 10)

Alerton TX-PLC-2 Control Module - 

ALERTON TX-MQ-WSHP  TXMQWSHP

ALERTON TX-APLC-K  TXAPLCK

ALERTON TX-APLC2  TXAPLC2

Alerton TX-APLC-2 DDC APLC2 Controller TXAPLC2  Great Working Condition

Alerton TX-APLC-2 DDC APLC2 Controller TXAPLC2 

ALERTON TX-APLC  TXAPLC

ALERTON TX-APLC  TXAPLC

Alerton TX-APLC Ibex APLC Programmable Controller V2.04 DDC TXAPLC 

ALERTON TX-653P  TX653P

Alerton TX-653P Programmable Controller

ALERTON TX-653P  TX653P

ALERTON TX-651-PULSE  TX651PULSE

Alerton TX-651-PULSE Ibex Tux Pulse TX651PULSE

Alerton TX-651-PULSE

ALERTON TX-450  TX450

ALERTON TX-450  TX450

Alerton TX-450 Ibex DDC Controller 4-Inputs 5-Digital Triac Outputs TX450 

Alerton TX-450 Ibex DDC Controller 4-Inputs 5-Digital Triac Outputs TX450 

ALERTON TX-16160  TX16160

Alerton TX-16160 Industrial Control System

Alerton TX-16160 Ibex Input/Output Controller TX16160

Alerton TX-16160 Bactalk controller  RETAIL $3000.00

ALERTON TX SA 651 QTY OF THREE FOR PARTS

ALERTON TUX-784ST  TUX784ST

ALERTON TUX-450ST  TUX450ST

ALERTON TUX APLC DDC CONTROLLER Central Plant AHU Chilled Water Hot Water

ALERTON TUX 784ST TUX784ST--

ALERTON TUX 450ST TUX450ST(S4-T-4B)

ALERTON TS-6000  TS6000

ALERTON TS-3004-OA-10  TS3004OA10

ALERTON TS-3004-MA-10  TS3004MA10

ALERTON TS-2104-PH-10-AA

ALERTON TS-2104-PH-03  TS2104PH03---

Alerton TS-2104-MH-10-AA Immersion Temperature Sensor

Alerton TS-2100 YJ-2100 Immersion Temperature Sensor

ALERTON TS-2008-FB-03-AA  TS2008FB03AA

Alerton TS2008FB03AA Industrial Control System

Alerton TS-1050 Bactalk Microtouch Wall Sensor with Wallplate 

Alerton TS 2104 PQ 10 Immersion Temperature Sensor

ALERTON TECHNOLOGIES LANVIEW GC-LVIEW GCLVIEW 24 VAC @ 10 VA RS-232 AC-2670

ALERTON TECHNOLOGIES APLC 2

ALERTON TECHNOLOGIES APLC

Alerton Sensor -- TS-2006-FB-03-AA -- 

ALERTON PROBE-6IN  PROBE6IN

ALERTON PROBE-10IN  PROBE10IN

Alerton Pressure Transmitter PS-22P Series 24