What is the translation of " 但这是第一次 " in English?

• but this is the first time
• but this was the first time

Examples of using 但这是第一次 in Chinese and their translations into English

但这是第一次，我们正在观看这个行动过程。
But this is the first time that we have seen the entire process.

但这是第一次对这个问题进行适当的学术研究。
But this is the first academic research looking at this issue properly.

但这是第一次有无尾熊遭殃。
However, this is the first time when it affects a bear.

但这是第一次这样的致命攻击。
But it was the first such fatal attack.

铝对汽车行业来说并不陌生，但这是第一次覆盖整个这样的大批量汽车。
Aluminum isn't new to the auto industry, but this is the first time it will cover the entire body of such a high-volume vehicle.

但这是第一次用PET制造气凝胶，这种塑料用于水和软饮料瓶。
But this is the first time an aerogel has been made from PET, the same plastic used for water and soft drink bottles.

文中表示他纹身已经有很长时间了，但这是第一次有人请他在他们的身上纹上身份证。
He has been doing tattoos for a long time, but this was the first time someone asked him to tattoo their ID card.

此后，房地产税率上下波动，但这是第一次完全免税。
Since then, the rates have fluctuated, but this is the first time the tax has been repealed altogether.

这个效应之前已经被预测过，但这是第一次在物理系统中实现时间之箭的反转。
The effect had been predicted, but this was the first time the reversal was achieved in a physical system.

我们之前就知道癌症包含了亚克隆，但这是第一次有人发现肿瘤中的每个细胞都是不同的。
We knew before that cancers contained subclones, but this is the first time that anyone has shown that each cell in a tumor is different.”.

我接到过恐吓电话和电子邮件，但这是第一次受到袭击”。
I get lots of threats on voice mail, but this was the first time in person.”.

但这是第一次证明萨维尔与建立恋童癖者之间的联系。
But this is the first time testimony has surfaced linking Savile to Establishment paedophiles.

他已经在2号和6号用过了，但这是第一次在这里。
He had already used it at the 2nd and 6th, but this was the first time here.

多年来一直都穿的是ECCO爱步鞋，但这是第一次买ECCO运动鞋。
I had loved their shoes for years but this was the first time I bought a shirt.

但这是第一次有人能够将细胞嵌入矿物质中，这就是骨组织的特征。
But this is the first time anyone has been able to embed cells in minerals, which is what characterizes the bone tissue.".

Wattway已经通过了停车场测试，但这是第一次使用在活跃的道路上。
Wattway has been tested in car parks, but this is the first time it has been used on an active road.

但这是第一次在天然水凝胶中看到它。
But this is the first time it's been seen in a natural hydrogel.”.

凯伦提到了这些话索赔和“证据“过去，但这是第一次要求学生使用它们。
Karen has mentioned the words“claims” and“evidence” in the past, but this is the first time students have been asked to use them.

过去六年来，Mandiant每年都会发布一份全球安全报告，但这是第一次把焦点扫向亚洲。
Mandiant has published a global security report for the past six years, but this is the first time it has focused on Asia.

来自BBC广播的盗版已经流传了几十年，但这是第一次在黑胶唱片上发行。
Bootlegs drawn from a BBC broadcast have circulated for decades, but this is the first time it's ever been released on vinyl.

亨森说，近几年来，喷气式飞机的气流造成数十人受伤，但这是第一次有人死亡。
Henson said dozens have been injured in recent years by the jet blasts, but this is the first time someone has died.

但这是第一次发布专门介绍保护区的稀有样本和特殊事物的两册书。
But it was the first time that two books dedicated to rare species and unique items in the protected areas were released.

这是第七次人口研究，但这是第一次NTNU研究人员参与他们自己研究的问题。
This is the seventh time the population study has been conducted, but it is the first time NTNU researchers have participated with their own questions.

但这是第一次提及用驯养的骆驼作有组织的军事袭击行动。
However, this the first time the Bible mentions a military attack using camels.

这种旋转的圆环形结构的存在几十年前首次提出，但这是第一次得到如此清楚的证实。
The existence of such rotating donuts-shape structures was first suggested decades ago, but this is the first time one has been confirmed so clearly.

莉莲曾多次表示,今天晚上,在回答同样的问题,但这是第一次,Dagny听见了。
Lillian had said it many times this evening, in answer to the same question, but it was the first time that Dagny heard it..

我接到过恐吓电话和电子邮件，但这是第一次受到袭击”。
We have been threatened on the phone before but this is the first time a physical attack happened.”.

我通常是按我的规定，但这是第一次用豆腐。
I usually default to this dish, though this is the first time I ordered it with tofu.

已有几款以乐高为主题的游戏，但这是第一次以真实和虚拟方式融合。
There are several Lego-themed games already, but this is the first time it's blending real and virtual this way.