無法解析equal to 動作的定序衝突

今天同事問了一個問題。

Declare @tblCUSTADR table
        (
                [CUST_ID] [char] (6) NOT NULL ,
                [Seq] [char] (1) COLLATE Chinese_Taiwan_Stroke_CI_AS NOT NULL,         
                [Sale_ADR] [nvarchar](60) COLLATE Chinese_Taiwan_Stroke_CI_AS NOT NULL          
        )

insert into @tblCUSTADR(CUST_ID, Seq, Sale_ADR)
                VALUES('A19834', '4', N'台北縣新莊市新泰路號-新杏店')

select t.* from customerAddress address
inner join @tblCUSTADR t on address.SubSeq = t.Seq
inner join Customer on t.CUST_ID = Customer.Cust_ID

結果出現了下面的錯誤訊息。
Msg 446, Level 16, State 9, Line 16
無法解析equal to 動作的定序衝突。

真是受不了，第一次碰到定序的問題。
解法如下：

select * from customerAddress address
inner join @tblCUSTADR t on  address.SubSeq COLLATE Chinese_Taiwan_Stroke_CI_AS = t.Seq COLLATE Chinese_Taiwan_Stroke_CI_AS
inner join Customer on t.CUST_ID = Customer.Cust_ID
COLLATE Chinese_Taiwan_Stroke_CI_AS