What's the width of the zebra crossing? What's the width of the road section? Thank you?

What's the width of the zebra crossing? What's the width of the road section? Thank you?

The basic length of zebra crossing is 3m-5m, each width is 45cm or 60cm, depending on the design speed. It can be widened by 1m according to the number of pedestrians. The length of zebra crossing should cross the road outside the pedestrian road. The setting interval of zebra crossing is generally 1

Apollo 11 spacecraft of the United States realized the first landing on the moon. When and where did the astronauts set foot on the moon?
January, 1968, Moscow sea on the back of the moon, July, 1969, Jinghai on the front of the moon, December, 1970, storm Ocean on the front of the moon, October, 1972, Mendeleev crater on the back of the moon

In July, 1969, the sea in front of the moon

How many steps should there be and how wide should the stairs be

Every 10 steps
Step height 150
Step width 270
In fact, you can choose other options for the stairs on Tianzheng building. You only need to input the floor height. You can set other options such as the width of the platform, and the computer will automatically generate the results

The first man to land on the moon was an astronaut. The spaceship they took was called the moon
I'm so anxious!

Apollo 11 was launched on July 16, 1969 and landed on the moon on July 20, 1969
Members:
Neil Armstrong
Buzz Aldrin
Michael Collins
Neil Armstrong is the first person to step on the moon
Gagarin was the first person to go into space

There is a 20 storey residential building with 19 steps between each two floors. A goes up the stairs from the third floor and takes three steps every two seconds. B goes down the stairs from the 15th floor and takes five steps every three seconds. A and B meet each other in a few seconds

Time = (15-3) × 19 × 6 ^ (3 × 3 + 2 × 5)
=72 seconds
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What's the name of the spaceship that the American astronaut took to the moon for the first time

The first U.S. lunar mission: Apollo 11
Launch vehicle: Saturn V
The lunar spacecraft consists of two parts
The lunar module is the eagle
The command module is Columbia

The floor is 2.6 meters high. If you want to build a staircase leading to the attic, how long, wide and high are the stairs?
The entrance of the attic is on the top of the restaurant. Only one side of the four sides is next to the wall, 0.9m * 0.7m in size. If you want to make a staircase directly up next to the wall of the restaurant, you'd better not make a corner. Under the stairs, you'd better make a fully enclosed cabinet for storing sundries. If you make it yourself, what material is the most economical? Give some advice to knowledgeable friends, Then the steps are made of stone, and the cabinet is made of wood. Is this suitable? The floor is made of wood. Can you put the stairs directly on it?
If you do L-shape, at least about how long does it need to occupy the wall?

If it is L-shaped, it should be at least 1.5 meters. It's better to knock the hole to 1.3 meters square to make it rotate

On July 21, 1969, American astronaut Armstrong branded the first human footprint on the moon, taking the first step of human conquest of the universe. On the moon, if Armstrong and his companion Aldrin measured the gravity of the instrument with mass m as F with a spring dynamometer, and another astronaut Collins flew the command module on the surface of the moon for one week, he would record the time t Using these data, we can calculate the mass of the moon

G = FM ① On the surface of the moon, gravity is approximately equal to universal gravitation ② If r = R and gravitation provides centripetal force, GMM 1R 2 = m 1R 4 π 2T 2 ③ Simultaneous solution: M = t4f316 π 4gm3 answer: mass of the moon t4f316 π 4gm3

Excuse me: what is the width specification of the stair rest platform in high-rise residential buildings? Is the distance between the center line of the stair handrail at the corner of the stairs and the wall 1200 mm or the clear distance between the side of the handrail and the wall 1200 mm?

1、 According to 4.1.4 of "code for design of residential buildings" (GB 50096-1999) (2003 Edition), the net width of stair landing shall not be less than the net width of stair flight, and shall not be less than 1.20m. 2. According to 6.7.3 of "general principles for design of civil buildings" (GB 50352-2005), when the direction of stair flight is changed, the minimum width of the platform at the turning end of handrail

"At 9:32 on July 16, 1969, a spaceship carrying Armstrong and three other astronauts..."
At 9:32 on July 16, 1969, a spaceship carrying Armstrong and three other astronauts rose into the sky under the push of a rocket and began to travel to the moon
Do you need more time?

Three astronauts went to the moon