It has been found that the crack propagation ratio obtained in the case of gradually increasing loading is smaller than that resulted from one-time loading.
在实验中还发现逐次从小载荷循环增至大载荷循环的裂纹扩展速率比一次加载明显减慢。
The 24 hour quarantine service shall be applied to any port with conditions for a ship to navigate and call at or leave at night as well as for night-time loading and unloading.
凡具备船舶夜航条件，夜间可靠离码头和装卸作业的港口口岸，应实行24小时检疫。
The 24 hour quarantine service shall be applied to any port with conditions for a ship to navigate and call at or leave at night as well as for night-time loading and unloading.
凡具备船舶夜航条件，夜间可靠离码头和装卸作业的港口口岸，应实行24小时检疫。
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