Abstract: A net-like material having an excellent heat shielding property while capable of transmitting light is provided. Net-like material 2 is formed by laminating two sheets of uniaxially stretched split fiber film 21 such that the stretching directions thereof are orthogonal to each other. Particles are added to the base resin of uniaxially stretched split fiber film 21. The particles are added to the resin in a range of 0.5 to 3 parts by mass per 100 parts by mass of the resin such that the average particle diameter of the particles is not less than 0.8 ?m and the proportion of particles having a particle diameter that is not less than 0.4 ?m is not less than 90%.

Abstract: The present invention provides a work control system for a trencher type excavator for soil cement wall, wherein in controlling the work of forming a soil cement wall carried out in the procedure such that a cutter post provided on a trencher type excavator for soil cement wall and having a chain cutter wound endlessly is inserted into the object ground, the cutter post is rotated while discharging a ground filler out of a discharge opening provided in the cutter post, and the cutter post is moved in a lateral direction of the ground, execution width of the soil cement wall based on a fixed work load, and filling quantity of the ground filler at each position of the soil cement wall forming work are displayed on a two-dimensional coordinate in a lateral axis and a longitudinal axis, respectively.

Abstract: In a floppy disc drive unit, the rotational speed of a floppy, a write current fed to a write head, electric characteristic of a signal processing circuit in a read circuit are all controlled so as to set them to values suitable for selected mode corresponding to magnetic recording data density. A switching signal is either manually produced or fed from an external circuit so as to effect switching between normal density mode and high density mode. The floppy disc drive unit according to the present invention is therefore capable of handling floppy discs of different density values.