第13周节细胞与内成神经细胞之间出现内网层；
推测的法向周节与实际测量值不同。影响周节错误的最主要因素是齿轮侧面有凹槽。
It is the difference between theoretical normal pitch and its actual measured value. The major element to influence the pitch errors is the runout of gear flank groove.
为了解决实际生产中大模数滚刀的在线测量，提出一种滚刀容屑槽周节误差测量系统。
To solve the problem of inline measuring hobs with bigger modulus in practice production, an inline measuring system for the circular pitch error of hobs is introduced.
对啮合偏移和周节累积误差分别和共同对轮齿载荷分布的影响进行了分析，并将分析结果进行了比较。
This paper has analysed load distribution of gear ring which is affected engaged deviation and cumulative pitch error, and comparing three analysis results.
计算分析认为，双圆弧齿轮的啮合点分布情况是齿轮的轴向周节、同一轮齿上两啮合点在轴向的距离和齿轮的有效宽度的函数。
Analysis shows that the distribution of meshing points is a function of the axial circular pitch, the axial space of two meshing points on a tooth and the effective width of the gear.
适用于检查7级或低于7级精度的内外齿合直齿与斜齿圆柱齿轮的周节偏差。操作简便，易于维修，可供各工厂计量室及车间使用。
This tester is suitable to measure accuracies of pitch deviation with inside and outside straight helical circular gear among seventh degree. Easy to operate and maintenance.
在感恩节周的头几天，孩子们就迫不及待地要去购物。
Early in Thanksgiving week, the children couldn't wait to go shopping.
电影节已经持续了一周。
你们在九月的第一周开始，然后恰好在圣诞节之前结束。
You start the first week in September and finish just before Christmas.
在我们学校英语节的前一周，我的老师让我在全校师生面前做一个演讲。
A week before my school's English festival, my teacher asked me to make a speech in front of the whole school.
青年气候峰会将于11月9日开始，这是一个为期一周的英国中小学气候行动节。
The Youth Climate Summit, a week-long festival of climate action for primary and middle schools in the UK, starts on 9 November.
可能你需要做的就是花费一周时间来学习一节。
Maybe what you need to do is spend a week studying one verse.
第二天，本笃十六世有一个绝佳的机会作出回应，因为他要在复活节周开始时宣讲信仰。
The next day, Benedict had a perfect chance to respond, as he addressed the faithful at the start of Easter week.
这是一个困难的决定，因为还有三个月就考试了，而我们两周有五节课要在这个教室上。
This was a difficult decision as we were three months away from exams and we had five lessons a fortnight in the room.
当这些政客们回来时，离感恩节的假期又只有一周时间。
When the politicians return, they have a week before the Thanksgiving break.
研究者们告诉这些学生他们将会在一周之后对这一节课内容做一个测验，他们也要求学生保存好他们的课堂笔记。
The researchers told the students they would be tested on the material in a week, and they also asked students to hold onto their class notes.
空蛋壳被染上色彩，到了复活节那一周，就被挂在树上。
The hollow eggs were dyed and hung from trees during the Easter Week.
这周，为了纪念发条橙问世40周年，该片的新版本将在戛纳影节上放映，并在之后发行蓝光版本。
This week, to mark its 40th anniversary, a newly restored version will be unveiled at Cannes, and released shortly after on Blu-ray.
或许，这才是对三八国际妇女节诞生一百周年最好的纪念，才是对世界各国妇女最为切实的节日祝愿！
This, perhaps, is the best commemoration of the centenary of the International women's Day, and warmest greetings to women of the world!
新年夜在圣诞节的一周后到来。
感恩节拉开了今年假期美食盛宴的序幕，长达六周的时间，你的腰带可能要着实绷紧了。
Thanksgiving marks the start of the holiday season foodfest, a six-week stretch when diets and belts will be severely strained.
在圣诞节的短交易周中，随着很多市场参与者（散户）观望情绪甚重，交易可能会变得异常不稳定，但这并不意味着投资者会闲下来。
Trading is expected to remain volatile with many market participants on the sidelines during the holiday-shortened week, but that doesn't mean investors won't be kept busy.
眼下汽车销售量下滑，工厂已经调整为非完整工作周，圣诞节期间关门整整四周。
The factory is now operating short weeks, due to a slump in car sales. It shut down completely for four weeks over Christmas.
那么，就在当晚，圣诞节两周前的一个飘雪之夜，丹尼斯发现了一个大线索。
And now, tonight, a snowy evening two weeks before Christmas, Dennis found a big thing.
伦敦的天使服装店（专供奇装异服）在万圣节到来这一周相当忙碌。
Angels Costumiers in London is having one of its busiest weeks of the year as the UK gears up to celebrate Halloween.
自圣诞节的两周以前，母亲就开始做小甜饼了。
自圣诞节的两周以前，母亲就开始做小甜饼了。
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